Embedd GUI

• Overview
  A13-OLinuXino is a low-cost single-board Linux computer in a very compact nano-ITX form. It uses the very first Cortex A8 processor available in eLQFP176 package, produced by Allwinner Technology Inc A13.

• Features
  
  • A13 Cortex A8 processor at 1GHz, 3D Mali400 GPU
  • 512 MB RAM (2 x 256Mbit x 8)
  • 6-16VDC input power supply, noise immune design
  • 3 + 1 USB hosts, 3 available for users, 1 leads to onboard pinout
  • 1 USB OTG which can power the board
  • SD-card connector for booting optional Linux image
  • VGA video output
  • Battery option and connector
  • LCD signals available on connector so you still can use LCD if you diasble VGA/HDMI
  • Microphone input
  • 4 Mount holes
  • RTC PCF8536 on board for real time clock and alarms
  • 5 Keys on board for android navigation
  • UEXT connectorfor connecting addtional UEXT modules like Zigbee, Bluetooth, Relays, etc
  • GPIO connector with 68/74 pins and these signals:
  • 17 for adding NAND flash;
  • 22 for connecting LCDs;
  • 20+4 including 8 GPIOs which can be input, output, interrupt sources;
  • 3x I2C;
  • 2x UARTs;
  • SDIO2 for connectinf SDcards and modules;
  • 5 system pins: +5V, +3.3V, GND, RESET, NMI
  • Dimensions: 120 x 120 mm (4.7x4.7'')
  • Optional low-cost 7" LCD with touchscreen

• Links
  
  • Retailers
    
    • Olimex
    • microcontrollershop.com
  • Datasheets
    
    • User Manual
    • A13-processor brief and datasheet
  • Hardware
    
    • GitHub OLINUXINO Project
  • Software
    
    • GitHub OLINUXINO Project
    • A1x Linux
  • Community
    
    • OLinuXino forum for discussion and community support
    • Freenode #olimex irc channel for OLinuXino development discussions

• Extracted CPU Info
  

  Processor	ARMv7 Processor rev 2 (v7l)
  BogoMIPS	1001.88
  Features	swp half thumb fastmult vfp edsp neon vfpv3
  CPU implementer	0x41
  CPU architecture	7
  CPU variant	0x3
  CPU part	0xc08
  CPU revision	2
  Hardware	sun5i
  Revision	0000
  Serial	0000000000000000

  • Derived From:

    cat /proc/cpuinfo
    

• Overview
  
  • The MOD-WIFI-RTL8188 is a USB WiFi module that is supported by the A13-OLinuXino and A13-OLinuXino-MICRO boards.
  • It uses the same WiFi board that comes as standard on the A13-OLinuXino-WIFI.
  • The WM-294 WiFi board on this module contains the popular RealTek RTL8188CUS single-chip Wireless LAN adapter. There are drivers available for Windows, Linux/Android and Mac, so you aren't limited only to using this module on an A13-OLinuXino board.

• Features
  
  • Has WM-294 module with RTL8188CUS, IEEE 802.11b/g/n
  • Operates in 2.4 GHz frequency bands
  • 1x1 MIMO technology improves effective throughput and range over existing 802.11 b/g products
  • Data rates up to 150Mbps
  • 802.11e-compatible bursting and i standards
  • BPSK, QPSK, 16 QAM, 64 QAM modulation schemes
  • WEP, TKIP, AES, WPA, and WPA2 hardware encryption schemes
  • Standard USB type A connector
  • On-board antenna
  • 5V/3.3V operation modes via SMD jumper (5V by default)
  • 4 test pads for easy tracking of the supply, d-, d+, and GND
  • PCB: FR-4, 1.00 mm (0.039"), solder mask, silkscreen component print
  • Dimensions: 65.15 × 20.38 mm (2.56 × 0.80")

• Links
  
  • Retailers
    
    • MicroControllerShop.com
    • Olimex
  • Datasheets
    
    • CC&C Technologies WM-294 Datasheet
    • MOD-WIFI-RTL8188 Schematic

• Overview
  
  • This is a 4.3-inch LCD with a resistive touch screen and an interface board that has been tested to work with A13 OLinuXino boards.
  • It connects to your A13 OLinuXino board by a 2×20-pin connector.
  • The display board and the OLinuXino board both have male box headers, so you will need a 40-pin IDC ribbon cable which is sold separately.

• Features
  
  • TFT Panel
    
    • Bo Lymin BT043DCNNHHp$ 4.3-inch (480×272) a-Si color TFT-LCD with white LED / CCFL backlight
    • 262K colors
    • Anti-glare surface
    • Resistive touchscreen panel
    • 40-pin connector for connection to A13-OLinuXino boards
    • 3.3V single power input with built-in power supply circuit
  • LCD Controller
    
    • MCU interface: 8/9/16/18-bit 80/68 series MCU interface
    • Display RAM size: 640×240×3×6 bits, e.g. 320×240 two-frame buffer with 262K colors
    • Arbitrary display memory start position selection
    • 8-bit / 16-bit interface: supports 65K (R5G6B5) / 262K (R6G6B6) color data format
    • 9-bit / 18-bit interface: supports 262K (R6G6B6) color data format

• Interface Board View
  
  • Note: The A13-OLinuXino boards come with an Android image set up for using a VGA display.
  • To use this LCD, you'll need to upload a new image with the appropriate settings.
  • A ready-made image (as well as the default VGA image so you can switch back) is available on the A13 OLinuXino Wiki Page (they are intended for 7-inch displays, so be sure also to get the A13-LCD43 script, which adjusts the resolution for this display size).

• Links
  
  • Retailers
    
    • microcontrollershop.com
    • Olimex
  • Datasheets
    
    • Download Datasheet
    • Download Schematic
  • Demonstrations
    
    • Video of the Multitouch Feature

• Specifications
  
  • This shield have extract the VCC、GND、TXD、RXD of the bluetooth.
    • (TXD、RXD are both 3.3V)
  • This shield has LED indication light.
  • Input Voltage ： 3.3V-6V
  • Size : 15.5mm*39.8mm

• Features
  
  • This module power supply input is 3.6 ~ 6V, please be careful that it should be not more than 7V.
  • compatible with master mode、slave mode and both master-slave mode
  • This module include key interface and state interface compared with Smart Bluetooth Module Baseboard.
  • The key interface on the baseboard is the master mode button and can be controlled by high level from external MCU, then this module will search again automatically.
  • The STATE interface on the baseboard is interface for LED STATE output feet, when bluetooth module don't not connected with other device and then output pulse, when bluetooth module connected with other device and then output high level, and the MCU will judge the state, then this module will search again automatically.

• Features
  
  • A13 Cortex A8 processor at 1GHz, 3D Mali400 GPU
  • 256 MB RAM (128Mbit x 16)
  • 5VDC input power supply with own ICs, noise immune design
  • 1 USB host
  • 1 USB OTG which can power the board
  • SD-card connector for booting the Linux image
  • VGA video output
  • LCD signals available on connector so you still can use LCD if you diasble VGA/HDMI
  • Audio output
  • Microphone input pads (no connector)
  • 1 User key
  • 4 Mount holes
  • UEXT connectorfor connecting addtional UEXT modules like Zigbee, Bluetooth, Relays, etc
  • GPIO connector with 68/74 pins and these signals:
    • 17 for adding NAND flash;
    • 22 for connecting LCDs;
    • 20+4 including 8 GPIOs which can be input, output, interrupt sources;
    • 3x I2C;
    • 2x UARTs;
    • SDIO2 for connectinf SDcards and modules;
    • 5 system pins: +5V, +3.3V, GND, RESET, NMI
  • Dimensions: 100 x 85 mm (3.950x3.350'')
  • Optional low-cost 7" LCD with touchscreen

• FAQ
  
  • There is only 1 USB host on the board, how can I connect simultaneously my USB mouse and USB keyboard?
    
    • You should use external USB hub.
  • What software is available for the board?
    
    • The software development changes very rapidly. So far we have reports for number of Linux distributions working properly with the MICRO, please visit the WIKI and the GitHub pages of A13-OLinuXino-MICRO to find suitable distributions;additionally you might want to check on the forum for additional help
  • I bought A13-LCD7-TS but when I connect it to the A13-OLinuXino-MICRO I receive no image on the display. What do I do wrong?
    
    • The default A13-OLinuXino-MICRO image is set for a VGA display and resolution. To use LCD with A13-OLinuXino-MICRO you need to upload new image with the appropriate settings.
    • The download links for the images may be found in the wiki article for A13-OLinuXino.
  • What is the operating temperature range of A13-OLinuXino?
    
    • The board works in the commercial temeprature range 0+70C
  • Where can I find the Android image for the A13-OLinuXino-MICRO?
    
    • At the moment we haven't tested Android booting from SD card. Android from SD card is currently not officially supported. However note that there are people reporting success getting it to run - head to the Olimex forums for more recent info.

• Documentation
  
  • A13-OLinuXino-MICRO User Manual
  • ManyCore Lite SoC for Android 4.0 PAD

• Links
  
  • General
    
    • https://github.com/OLIMEX/OLINUXINO
    • https://www.olimex.com/Products/OLinuXino/A13/A13-OLinuXino-MICRO/
    • http://linux-sunxi.org/Main_Page - for discussion and community support
    • https://www.olimex.com/forum/ - for OLinuXino development discussions
  • Software Sources
    
    • https://www.olimex.com/wiki/A13-OLinuXino-MICRO
      • https://docs.google.com/file/d/0B-bAEPML8fwlTWFweEZGM0hmMkE/edit
    • https://www.olimex.com/wiki/A13-OLinuXino

• Extrated CPU Info
  

  Processor	ARMv7 Processor rev 2 (v7l)
  BogoMIPS	1001.88
  Features	swp half thumb fastmult vfp edsp neon vfpv3
  CPU implementer	0x41
  CPU architecture	7
  CPU variant	0x3
  CPU part	0xc08
  CPU revision	2
  Hardware	sun5i
  Revision	0000
  Serial	0000000000000000

  • Derived From:

    cat /proc/cpuinfo
    

• Research on Touchscreen Support
  
  • Problem Overview
    
    • Problem with the A13 Micro: All debian images are built for 512 MB of RAM, 256 is all that is available
  • Research
    
    • Xman Conversation {Link}
      
      • <xman> hi, What happens if my dram_size = 512 in [dram_para], but my board have only 256MB?
      • <WarheadsSE> xman: which board ?
      • <xman> https://www.olimex.com/Products/OLinuXino/A13/A13-OLinuXino-MICRO/
      • techn_> with 256MB ram you propably need to disable mali, framebuffer and g2d.. memmap hard coded to somewhere 400-500MB
      • <techn_> example
      • xman> 64M and 32M is for what?
      • techn_> 64M mali, 32M for reserved framebuffer(for mali use)
      • …
      • <WarheadsSE> xman: then you should be enable appropriately adjust the dram para, but you might need an updated uboot that has a 256M SPL
      • ..
      • <WarheadsSE> the Wifi has an AXP, which the Mirco doesn't.
      • <WarheadsSE> That's a big difference.
      • …
      • <xman> so, you edit fex, uptade kernel and update u-boot?
      • <WarheadsSE> yes, fex change, kernel source change, u-boot source change
      • <WarheadsSE> recompile all.
      • ..
      • <WarheadsSE> For the moment, they need to use the provided kernel source repository, and the associated uboot.
    • Olimex General Conversation {Link}
      
    • In Depth Conversation about Recompiling Kernal from Source {Link}
      
  • Compile Kernal From Source
    
    • Links
      
      • https://www.olimex.com/forum/index.php?topic=747.msg3558#msg3558

        git clone git://github.com/linux-sunxi/u-boot-sunxi.git
        git clone https://github.com/hehopmajieh/linux-sunxi
        cd linux-sunxi
        git checkout origin/sunxi-3.0
        make a13_olinuxino_micro CROSS_COMPILE=arm-linux-gnueabi-
        make ARCH=arm a13om_defconfig
        make ARCH=arm menuconfig
        

• FPC4034006
• tl-c430ve display
• 4.3" FPC4304006 MP4 MP5 GPS lcd display panel
• Place of Origin: Guangdong, China (Mainland)
• Brand Name: BYD

scp allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and provides the same authentication and same level of security as ssh.

• Copy the file "foobar.txt" from a remote host to the local host
  

  scp -P 22122 root@192.168.12.200:foobar.txt /some/local/directory
  

• Copy the file "foobar.txt" from the local host to a remote host
  

  scp -P 22122 foobar.txt root@192.168.12.200:/some/remote/directory
  

• Copy the directory "foo" from the local host to a remote host's directory "bar"
  

  scp -P 22122 -r foo root@192.168.12.200:/some/remote/directory/bar
  

• Copy the file "foobar.txt" from remote host "rh1.edu" to remote host "rh2.edu"
  

  scp -P 22122 your_username@rh1.edu:/some/remote/directory/foobar.txt your_username@rh2.edu:/some/remote/directory/
  

• Copying the files "foo.txt" and "bar.txt" from the local host to your home directory on the remote host
  

  scp -P 22122 foo.txt bar.txt root@192.168.12.200:~
  

• Copy the file "foobar.txt" from the local host to a remote host using port 2264
  

  scp -P 22122 -P 2264 foobar.txt root@192.168.12.200:/some/remote/directory
  

• Copy multiple files from the remote host to your current directory on the local host
  

  scp -P 22122 root@192.168.12.200:/some/remote/directory/\{a,b,c\} .
  scp -P 22122 root@192.168.12.200:~/\{foo.txt,bar.txt\} .
  

• Receive and Entire Directory
  

  scp -r root@192.168.12.222:/root/Desktop/src/tslib tslib_v2
  

• http://www.hypexr.org/linux_scp_help.php

/ will not modify host directory /

rsync -rtvz -e "ssh -p 22122" /home/slayer/Desktop/foo/ root@192.168.12.200:/root/Desktop/foo/

• http://mike-hostetler.com/blog/2007/12/08/rsync-non-standard-ssh-port/
• http://www.jveweb.net/en/archives/2010/11/synchronizing-folders-with-rsync.html

1. Navigate to backup directoryhttp://raspberrypi.stackexchange.com/questions/311/how-do-i-backup-my-raspberry-pi

   cd BAK/
   

2. connect card to linux, unmounted
3. copy card contents with dd

   sudo dd if=/dev/mmcblk0 | gzip > ./debian_configured_v1.image.gz
   

1. insert unmounted card
2. unzip to card

   sudo gzip -dc /path/to/debian_configured_v1.image.gz | dd of=/dev/mmcblk0
   

rsync -rtvz --progress /media/Global/Global/BAK/embedd_gui/bin nickguthrie.com:nickguthrie.com/embedd_gui/bin

• How do I make a Backup of my Rasberry Pi {Link}
  
  1. Make a full backup of the image
     • If you are running linux then you can use the dd command to make a full backup of the image:

       dd if=/dev/sdx of=/path/to/image
       

     • or for compression:

       dd if=/dev/sdx | gzip > /path/to/image.gz
       

     • Where sdx is your SD card.
  2. To restore the backup you reverse the commands:
     • Uncompressed

       dd if=/path/to/image of=/dev/sdx
       

     • or when compressed:

       gzip -dc /path/to/image.gz | dd of=/dev/sdx
       

• I am installing a Debian Image found here.
  • Specifically: A13 Debian 2GB card image without XFCE4 with GCC, GPIO, WIFI, WTHERNET, UVC, Python, OpenCV

1. Download Debian Image
2. Unrar Debian Image

   unrar e A13_debian_WIFI_GCC_GPIO_IN_OUT_AUTO_load_withoutX_I2C_100KHz_UVC_Python_OpenCV_fifth_release.rar
   

3. Copy img file to card

   dd bs=4M oflag=sync if=A13_Micro_Debian_1GHz_GPIO_100kHz_I2C_WIFI_USB_LAN_without_X_and_touch_first_release.img of=/dev/mmcblk0
   

   • WARNING: will overwrite everything on card

• http://www.cnx-software.com/2012/12/21/olimex-a13-olinuxino-micro-development-board-unboxing-and-review/
• https://www.olimex.com/wiki/Prebuilt_SD_card_images_running_debian

• The script.bin will determine what display can be used.
• There are different configurations for different displays when you use Linux because the dot pitch is different.

1. Create LCD script directory

   mkdir scripts;
   cd scripts;
   

2. Download VGA_LCD_scripts_A13.zip
3. Extract the folders

   unzip VGA_LCD_scripts_A13.zip
   

4. Mount 17 MB Fat32 Partition to Computer
5. Backup script.bin on device

   cd /media/mmcblk0
   cp script.bin script.bin.BAK
   

6. Copy correct script.bin to Device

   cp scripts/script_GPIO_LCD_480x272/script.bin /media/mmcblk0
   

• Olimex.com Wiki: Configuration of hardware in the Debian Image

• The bin2fex and fex2bin program supplied by Olimex can be used to convert the script.bin binary file to a readable/editable text file, which can then be modified and converted back into a script.bin binary file.

1. extract A13 tar file

   cd bin/
   tar -zxvf fex2bin_bin_fex_tools.tar.gz
   

2. install libusb

   sudo apt-get install libusb-1.0-0-dev
   

3. Build Files

   make clean
   make -k
   

• Using bin2fex
  
  • First, get hold of the script.bin file located in the boot loader partition (do this by mounting either the RFSFAT16_BOOTLOADER_00000 from Livesuit, or the actual partition image from the tablet). Place it on the Desktop of your Ubuntu machine. Then, from a terminal on the Desktop, run:

    # ./bin2fex script.bin script.fex
    ../bin/A13_script_files/fex2bin_bin_fex_tools/bin2fex script.bin script.fex
    

    • This converts the script.bin file into script.fex. Here's the output produced - script.fex.

• Using fex2bin
  
  • To convert back, it's simply the reverse:

    # ./fex2bin script.fex script.bin
    ../bin/A13_script_files/fex2bin_bin_fex_tools/fex2bin script.fex script.bin
    

    • This can then be placed back on the bootloader partition (remember to also overwrite script0.bin).

• INIT: cannot execute "/sbin/getty"
  
  • Description
    
    • During boot, serial connaction outputs error:

      INIT: cannot execute "/sbin/getty"
      

  • Probable Cause
    
    • The util-linux is not installed

• Configuration of hardware in the debian image {Link}
  
  • Tools
    
    • Script file
      
      • The script.bin is a text file with very important configuration parameters like port GPIO assignments, DDR memory parameters, Video resolution etc, by changing these parameters in the script.bin you can configure your Linux without need to re-compile your kernel again and again this is smart way Allwinner provides for tweaking A13 Linux Kernel
    • fex
      
      • The fex tool will convert a script.bin file to a text file and back again.
      • This allows the easy modification of the settings that are in the script.bin file
    • Tools and script files
      
      • A13 script bin and fex tool
      • The directory A13_script_files contains:

        script.bin

        the default script with VGA800x600settings

        fex2bin_bin_fex_tools.tar.gz

        tools fex2bin and bin2fex for converting the *.bin script file to *.fex(text file)

        script_GPIO_VGA

        script with VGA800x600settings

        script_GPIO_LCD_800x480

        script with LCD800x480settings

  • Changing A13-OLinuxino settings to VGA800x600 or LCD800x480
    
    • The default SD card setup is made with settings for VGA 800x600. If you want to switch between VGA 800x600 and LCD800x480 mode then you have to replace the existing script.bin file from the first SD card partitition (note that this partition is FAT - so you can replace the file under Windows or Linux) with the script.bin file from script_GPIO_VGA directory (if you want to change to VGA800x600 mode) or from script_GPIO_LCD_800x480 directory (if you want to change to LCD800x600 mode).
    • Establish WIFI connection
      
      1. plug in MOD-WIFI-RTL8188 if the board is not A13-OLinuXino-WIFI

         type ifconfig -a
         

         • Output

           lo Link encap:Local Loopback
           
                    inet addr:127.0.0.1  Mask:255.0.0.0
                    UP LOOPBACK RUNNING  MTU:16436  Metric:1
                    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:0
                    RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           tunl0 Link encap:IPIP Tunnel HWaddr
           
                    NOARP  MTU:1480  Metric:1
                    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:0
                    RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           wlan2 Link encap:Ethernet HWaddr 48:02:2a:eb:21:1c
           
                    inet addr:192.168.0.229  Bcast:192.168.0.255  Mask:255.255.255.0
                    UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                    RX packets:166 errors:0 dropped:726 overruns:0 frame:0
                    TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:1000
                    RX bytes:31361 (30.6 KiB)  TX bytes:1248 (1.2 KiB)
           

           • and look at your wlan number. In this case we have wlan2
      2. open the file /etc/network/interfaces- for example using vi tool

         vi /etc/network/interfaces
         

         • and change

           auto wlan2
           iface wlan2 inet dhcp
           wpa-ssid YourSSIDname
           wpa-psk YourWPAkey
           reboot A13-OLinuXino board
           
           
           

         • Chek your connection

           ifconfig -a
           

           • if everything is ok you should see something as:

             wlan1 Link encap:Ethernet HWaddr 48:02:2a:eb:21:1c
             
               inet addr:192.168.0.229  Bcast:192.168.0.255  Mask:255.255.255.0
               UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
               RX packets:166 errors:0 dropped:726 overruns:0 frame:0
               TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
               collisions:0 txqueuelen:1000
               RX bytes:31361 (30.6 KiB)  TX bytes:1248 (1.2 KiB)
             

    • Establish ethernet connection using USB-ETHERNET adapter recommended supported adapter USB-ETHERNET-AX88772B
      
      1. plug in USB-ETHERNET-AX88772B adapter
      2. type

         ifconfig -a
         

         • you should see something like this

           eth1 Link encap:Ethernet HWaddr 00:80:80:9a:4a:63
           
                    inet addr:192.168.0.113  Bcast:192.168.0.255  Mask:255.255.255.0
                    UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                    RX packets:58 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:1000
                    RX bytes:7852 (7.6 KiB)  TX bytes:510 (510.0 B)
           lo Link encap:Local Loopback
           
                    inet addr:127.0.0.1  Mask:255.0.0.0
                    UP LOOPBACK RUNNING  MTU:16436  Metric:1
                    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:0
                    RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           tunl0 Link encap:IPIP Tunnel HWaddr
           
                    NOARP  MTU:1480  Metric:1
                    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:0
                    RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           

           • look at your eth number. In this case we have eth1
      3. open the file /etc/network/interfaces- for example using vi tool

         vi /etc/network/interfaces
         

         • and change the following rows

           auto eth1
           iface eth1 inet dhcp
           where eth1 is the interface number
           reboot A13-OLinuXino board
           

         • or type ifup eth1
      4. Check your connection

         ifconfig -a
         

         • if everything is ok you should see something as:

           eth1 Link encap:Ethernet HWaddr 00:80:80:9a:4a:63
           
                    inet addr:192.168.0.113  Bcast:192.168.0.255  Mask:255.255.255.0
                    UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                    RX packets:725 errors:0 dropped:0 overruns:0 frame:0
                    TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
                    collisions:0 txqueuelen:1000
                    RX bytes:77056 (75.2 KiB)  TX bytes:1686 (1.6 KiB)
           

    • GPIO changing
      
      1. lsmod

         type lsmod
         

         • if sun4i-gpio is present - OK
         • unless type modprobe sun4i-gpio
      2. go to /sys/devices/virtual/misc/sun4i-gpio/pins and type ls
         • list of supported pins will be shown
         • example for port reading:

           cat pe4 read PortE4 the result should be 0 or 1 example for port writing: echo 1 > pg9 - turn on LED
           

      • Changing A13 GPIO direction
        
        1. extract fex2bin_bin2fex_tools on linux machine

              sudo su
              cd fex2bin_bin2fex_tools directory
              mount /dev/sdx1 /mnt/sd # mount first partitition on SD card
              ./bin2fex /mnt/sd/script.bin > /mnt/sd/script_test.fex # convert bin file to fex
           gedit /mnt/sd/script_test.fex
           

      • GPIOs are defined in the end.
        
        • where

          Pxx<mode><pull><drive><data> mode 0-7, 0=input, 1=ouput, 2-7 I/O function pull 0=none, 1=up, 2=down drive 0-3, I/O drive level data - data output - logical 0 or 1
          

        • for example: if you want to change GPIO direction then change first parameter after port name

          gpio_pin_8 = port:PE08<0><default><default><default>make PE8 input gpio_pin_8 = port:PE08<1><default><default><default>make PE8 output
          

        • save and exit
        • ./fex2bin /mnt/sd/script_test.fex > /mnt/sd/script.bin- convert fex to bin

• fex2bin and bin2fex - script.bin {Link}
  
  • Overview
    
    • During the boot process, the processor reads a file called script.bin, located in the bootloader (nanda) partition. This file contains all of the processor configuration details (such as pin functions, voltages, clock frequencies, memory configuration etc) and is essential to the correct operation of the tablet. The purpose of this file should be distinguished from that of build.prop, located in /system/build.prop. The latter is a configuration for Android, once it's started. script.bin is configuration for the processor.
    • Note that there is also a file in the bootloader partition called script0.bin - this is a backup and must be identical to script.bin.
    • For more information on the boot process and the function of script.bin, have a look at these links:
      • http://rhombus-tech.net/allwinner_a10/a10_boot_process/
      • http://elinux.org/Hack_A10_devices
      • http://www.cnx-software.com/2012/05/06/editing-allwinner-a10-board-configuration-files-script-bin/
      • http://linux-sunxi.org/Sunxi-tools
      • The second link above shows a really neat trick where the pins normally intended for interfacing with the SD card are remapped to a UART port, so you can get a serial port by connecting to the SD card slot!
    • The script.bin file is actually the binary equivalent of the COMMON_SYS_CONFIG100000 file found in the unpacked Livesuit image. The human-readable version is called a "FEX" file, since that's the extension used by some conversion programs. There are a couple of tools available which can convert between the binary and FEX formats, and these are described below. This - http://linux-sunxi.org/Fex_Guide - is a description of the sections in the FEX file.
      • (There is an online version of these tools available at https://www.miniand.com/tools/fexc, but I couldn't get it to work.)
  • Installation
    
    • To get the tools, go to the git repository at https://github.com/linux-sunxi/sunxi-tools/ and download the ZIP file (called sunxi-tools-master.zip). Extract this, and place the folder on the Desktop of your Linux machine. Open a terminal, cd to the folder, then run

      sudo apt-get install libusb-1.0-0-dev
      

      • (this installs libusb, which is required for compilation). Then type make which should compile the files. This creates two programs (actually it creates a lot more, but these are the only two we're interested in) called bin2fex and fex2bin.
  • Using bin2fex
    
    • First, get hold of the script.bin file located in the boot loader partition (do this by mounting either the RFSFAT16_BOOTLOADER_00000 from Livesuit, or the actual partition image from the tablet). Place it on the Desktop of your Ubuntu machine. Then, from a terminal on the Desktop, run:

      sunxi-tools-master/bin2fex script.bin script.fex
      

      • This converts the script.bin file into script.fex. Here's the output produced - script.fex.
  • Using fex2bin
    
    • To convert back, it's simply the reverse:

      sunxi-tools-master/fex2bin script.fex script.bin
      

      • This can then be placed back on the bootloader partition (remember to also overwrite script0.bin).
  • Using fex2bin on the COMMON_SYS_CONFIG100000 LiveSuit file
    
    • You can use fex2bin to convert the COMMON_SYS_CONFIG100000 file from the unpacked LiveSuit image into a script.bin file. However, I initially got an error saying "E: CONFIG:696: invalid character at 27" or similar (which means line 696, character 27). Looking at the file, it turned out there were quotes missing at a certain point. Here's the original part of the file:

      [msc_feature]
      vendor_name              =USB 2.0
      product_name             =USB Flash Driver
      To get it to convert properly, I put quotes as follows:
      
      [msc_feature]
      vendor_name              ="USB 2.0"
      product_name             ="USB Flash Driver"
      

      • I'm not sure why quotes were missed out here, since they're present everywhere else.
  • Which version ends up on the tablet?
    
    • If you're eagle-eyed, you may notice something at this point. In the unpacked LiveSuit files, there are essentially two copies of script.bin. One is the human-readable COMMON_SYS_CONFIG100000 file, the other is the script.bin located within the RFSFAT16_BOOTLOADER_00000 image file. The two copies are identical (if you use fex2bin/bin2fex to convert between them, and remember the quotation marks). So, which one actually ends up on the tablet?
    • I made a slight modification to one, then the other, packing and burning a complete LiveSuit image each time, and determined that it's the script.bin inside RFSFAT16_BOOTLOADER_00000 which ends up on the tablet (hardly surprising, since RFSFAT16_BOOTLOADER_00000 is a byte-for-byte copy of the nanda tablet partition). To be on the safe side, I would still ensure that COMMON_SYS_CONFIG100000 is identical to the script.bin file - maybe LiveSuit uses COMMON_SYS_CONFIG100000 for its own initial configuration, or something.

• imx233-olinuxino-with-lcd-4-3-and-touchscreen {Link}
  

• Product Info {Link}
  

• Changing A13-OLinuxino settings to VGA800x600 or LCD800x480 {Link}
  

• http://olimex.wordpress.com/2012/12/19/a13-lcd7ts-support-in-linux/
  

• (As of 1 March 2013, the current Debian build for this MICRO version does not yet support a touch panel.)
  
  • http://184.172.168.133-static.reverse.softlayer.com/product_info.php?cPath=&products_id=5414

• How to make 7" LCD Screen working on the A13Micro with Debian or Custom distrib?
  

• Steps
  
  • Determine Wireless Device
    

    dmesg
    

    • Found as wlan3
  • Configure /etc/network/interfaces as Root
    

    auto wlan3
    iface wlan3 inet dhcp
        wpa-ssid TVCOG
        wpa-psk COGpass1
    

  • Restart the Networking Service
    

    service networking restart
    

  • Test the Network
    

    ifconfig
    ping google.com
    

• Links
  
  • How to connect to a wireless network from the ubuntu command line
  • debian linux wpa wpa2 wireless wifi networking

• Steps
  
  • Determine Information
    

    ifconfig
    

    • Find:
      • address
      • netmask
      • gateway
      • DNS Servers
  • Modify /etc/network/interfaces as Root
    

    auto wlan3
    iface wlan3 inet static
       wpa-ssid TVCOG
       wpa-psk COGpass1
       address 192.168.12.222
       netmask 255.255.255.0
       gateway 192.168.12.1
    

  • Modify /etc/resolv.conf as Root
    

    domain techvalleycenterofgravity.com
    search techvalleycenterofgravity.com
    nameserver 64.22.32.8
    nameserver 64.22.32.9
    

  • Restart Networking as Root
    

    /etc/init.d/networking restart
    

  • Test Results
    

    ifconfig
    ping google.com
    

• Links
  
  • Linux Basics set a Static IP on Ubuntu

• Steps
  

  date --set="10 JUL 2013 12:27:00"
  

• Links
  
  • http://www.cyberciti.biz/faq/howto-set-date-time-from-linux-command-prompt/

• Overview
  
  • My keyboard layout was set to UK, which meant I typed things like ¬ instead of ~ and £ instead of #.
  • This can easily be remidied from the commandline.

• Steps
  
  1. Modify the keyboard locale

     sudo dpkg-reconfigure keyboard-configuration
     

  2. reboot

     reboot -h now
     

• Links
  
  • AskUbuntu.com: Changing keyboard layout in ubuntu 12.04 server command-line interface

• Steps
  
  1. update packages

     apt-get update; apt-get upgrade; apt-get dist-upgrade
     

  2. install packages

     apt-get install aptitude emacs build-essentials pkg-config
     

     • emacs is obviously "optional" but is the preferred text-editor of choice for real programmers ;)

• Steps
  
  • Install ssh server
    

    apt-get install openssh-server
    

  • Create or modify the /etc/init.d/sshd init script as follows:
    

    #! /bin/sh
    #
    # start/stop the secure shell daemon
    
    case "$1" in
    'start')
    
        # Start the ssh daemon
        if [ -x /usr/sbin/sshd ]; then
                echo "starting SSHD daemon"
                /usr/sbin/sshd &
        fi
        ;;
    
    'stop')
        # Stop the ssh daemon
        /usr/bin/pkill -x sshd
        ;;
    *)
        echo "usage: /etc/init.d/sshd {start|stop}"
    ;;
    

  • Check that /etc/rc3.d/S89sshd exists (or any sshd startup script exists) and is a soft link to /etc/init.d/sshd.
    
    • If not, create it using the following command:

      ln -s /etc/init.d/sshd /etc/rc3.d/S89sshd
      

  • Determine that ssh is running
    

    service ssh status
    

  • Determine Port Open
    

    netstat -tlpn
    

    • Port is: 22122
  • Determine IP Address to connect to
    

    ifconfig
    

  • Connect to ssh
    

    ssh root@192.168.12.128 -p 22122
    

• Debugging
  
  • Check ports being listened on

    netstat -an | grep "LISTEN"
    

• Links
  
  • Configure Open SSH Server To Start Up On System Boot
  • SSH Connection Refused On Raspberry Pi Cannot Find Why

• Overview
  
  • Most of this guide is dedicated to setting up this micro-controller to run QT Embedded, which allows the use of graphical programs without runnng a graphical desktop (XFCE). That being said it is possible to install one, I haven't worked on getting touchscreen support working with it, but Olimex has posted a few tutorials and it does work fine with a mouse.

• Steps
  

  apt-get install --no-install-recommends xorg xfce4 alsa-base alsa-utils;
  apt-get install --no-install-recommends cpufrequtils gamin xdg-utils;
  apt-get install --no-install-recommends desktop-base gnome-icon-theme dmz-cursor-theme;
  apt-get install --no-install-recommends xfce4-terminal xfce4-power-manager xfce4-screenshooter;
  startx;
  

• Links
  
  • Installing GUI
    http://lcncolinuxino.blogspot.com/p/installing-gui.html
    • Overview
      Optionally if desired, a GUI user interface can be installed. This section describes how to install a small foot print xfce4 user interface.
    • Steps
      

      apt-get install --no-install-recommends xorg xfce4 alsa-base alsa-utils;
      apt-get install --no-install-recommends cpufrequtils gamin xdg-utils;
      apt-get install --no-install-recommends desktop-base gnome-icon-theme dmz-cursor-theme;
      apt-get install --no-install-recommends xfce4-terminal xfce4-power-manager xfce4-screenshooter;
      apt-get install --no-install-recommends thunar-archive-plugin thunar-media-tags-plugin;
      apt-get install --no-install-recommends xfburn htop squeeze bzip2 zip unzip unrar-free;
      # Finally start the user interface with:
      startx;
      

    • Links
      

• Connecting
  

• Installation
  
  • Connect to Linvar
    Passphrase: 1234
  • Configure /etc/bluetooth/rfcomm.conf
    

    #
    # RFCOMM configuration file.
    #
    
    rfcomm0 {
            # Automatically bind the device at startup
            bind no;
    
            # Bluetooth address of the device
            device 00:12:03:27:71:07;
    
            # RFCOMM channel for the connection
            channel 1;
    
            # Description of the connection
            comment "Example Bluetooth device";
    }
    

  • Restart Bluetooth
    

    service bluetooth restart
    

  • Determine the Hardware Address
    The hardware address should be replaced with that of your phone. If you don't know the hardware address of your phone yet, you can get it by running:
  • Bind the Address
    

    sudo rfcomm bind 0 00:12:03:27:71:07
    

• Links
  
  • How to setup Bluetooth

• Installation
  
  • Determine hardware a
    
  • Modify /etc/bluetooth/rfcomm.conf as Root
    

    rfcomm2 {
            # Automatically bind the device at startup
            bind no;
    
            # Bluetooth address of the device
            device 00:12:03:27:71:07;
    
            # RFCOMM channel for the connection
            channel 1;
    
            # Description of the connection
            comment "Olimex";
    }
    

  • Restart Bluetooth
    

    sudo service bluetooth restart
    

• Connecting
  
  1. Initialize Connection

     sudo rfcomm connect rfcomm2
     

  2. Connect with Screen

     screen /dev/rfcomm2 115200
     

  3. Login

• Links
  
  • 5 linux unix commands for connecting to the serial console
  • how to pair a bluetooth device from command line on linux

1. Download Buildroot

   mkdir bld; cd bld
   wget http://buildroot.net/downloads/buildroot-2013.05.tar.gz
   tar -xvf buildroot-2013.05.tar.gz
   cd buildroot-2013.05
   

2. Run Menu Config

   make menuconfig
   

   • Relevant Configurations:

     Target Architecture	ARM (little endian)
     Target Architecture Variant	Cortex-A8
     Toolchain	Sourcery Codebench ARM 2011.09

3. If you are on a 64-bit system

   sudo apt-get install ia32-libs
   

   • See Error
4. Install toolchain binaries

   su
   cp -a ext-toolchain /opt/ext_toolchain
   cp /etc/environment /etc/environment.BAK
   

   • Append :/opt/ext_toolchain/bin/ to Path

     PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/opt/ext_toolchain/bin/"
     

5. Logout and Login or Reboot

• Buildroot Toolchain Error: "error while loading shared libraries: libstdc++.so.6"
  
  • Error:
    
    • error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
  • Probable Cause
    
    • Its looking for 32-bit library, which is not installed since I have a 64-bit system
  • Solution
    
    • Install the 32 bit libraries

    sudo apt-get install ia32-libs
    

  • Links
    
    • http://stackoverflow.com/questions/11471722/libstdc-so-6-cannot-open-shared-object-file-no-such-file-or-directory

• Using buildroot for real projects
  • This is a great presentation that demonstrates how to use buildroot very clearly.

One of the first problems we had with OLinuxIno-A13 board is the touchscreen support.
The manual was published on the official Olimex blog, but source packages had updated, so old solution didn't give an effect.
After some experiments, we solved this problem.
Here is a full step-by-step manual how to get the device works well under Debian

• Dimrobotics

1. Install make and automake

   apt-get install make automake
   

2. Download tslib source code and go to its directory:

   git clone https://github.com/kergoth/tslib.git
   cd tslib
   

3. Download and apply the patch using GNU patch utility:

   wget https://raw.github.com/webconn/OLINUXINO/master/SOFTWARE/A13/TOUCHSCREEN/tslib.patch
   patch -p0 < tslib.patch
   

4. Configure, make and install:

   autoreconf -vi
   ./configure --prefix=/usr
   make
   make install
   

5. Then, let's load a kernel module and check touchscreen:

   modprobe sun4i-ts
   dmesg | grep sun4i-ts
   

   • Result

     [12951.630000] sun4i-ts.c: sun4i_ts_init: start ...
     [12951.640000] sun4i-ts: tp_screen_size is 5 inch.
     [12951.650000] sun4i-ts: tp_regidity_level is 5.
     [12951.660000] sun4i-ts: tp_press_threshold_enable is 0.
     [12951.670000] sun4i-ts: rtp_sensitive_level is 15.
     [12951.670000] sun4i-ts: rtp_exchange_x_y_flag is 0.
     [12951.690000] sun4i-ts.c: sun4i_ts_probe: start...
     [12951.710000] input: sun4i-ts as /devices/platform/sun4i-ts/input/input4
     [12951.730000] sun4i-ts.c: sun4i_ts_probe: end
     

6. To load this kernel module automatically, add a line into /etc/modules:

   echo sun4i-ts >> /etc/modules
   

7. Export Some Variables

   export TSLIB_TSEVENTTYPE=raw
   export TSLIB_CONSOLEDEVICE=none
   export TSLIB_FBDEVICE=/dev/fb0
   export TSLIB_TSDEVICE=/dev/input/event4
   export TSLIB_CALIBFILE=/usr/etc/pointercal
   export TSLIB_CONFFILE=/usr/etc/ts.conf
   export TSLIB_PLUGINDIR=/usr/lib/tsg
   

8. Next, configure raw input module of the tslib.
   • Open /usr/etc/ts.conf and uncomment the line which contains "module_raw input".
9. To load configuration variables while system is loading, write these lines into /etc/environment file (check highlighted number):

   TSLIB_TSEVENTTYPE=raw
   TSLIB_CONSOLEDEVICE=none
   TSLIB_FBDEVICE=/dev/fb0
   TSLIB_TSDEVICE=/dev/input/event3
   TSLIB_CALIBFILE=/etc/pointercal
   TSLIB_CONFFILE=/usr/etc/ts.conf
   TSLIB_PLUGINDIR=/usr/lib/ts
   

• undefined macro: AC_DISABLE_STATIC
  
  • Error Caused
    
    • while attempting to do "autoreconf -vi" when building tslib
  • Error Message
    

    configure.ac:24: error: possibly undefined macro: AC_DISABLE_STATIC
          If this token and others are legitimate, please use m4_pattern_allow.
          See the Autoconf documentation.
    

  • Solution
    

    apt-get install libtool
    

  • Links
    
    • http://www.friendlyarm.net/forum/topic/621

cat /dev/input/event3 | hexdump

• http://www.dimrobotics.com/2013/06/olinuxino-a13-touchscreen-support-in.html
• http://www.armadeus.com/wiki/index.php?title=Qt/Embedded#Touchscreen_handling

• Install QT on Development Platform
  http://suchakra.wordpress.com/2011/05/17/qt-on-mini2440/

  sudo apt-get install qtcreator
  

• Install TSLIB on Development Platform
  http://billforums.station51.net/viewtopic.php?f=8&t=15

  cd ~/src
  git clone https://github.com/kergoth/tslib.git tslib
  cd tslib
  # custom patch for Olinuxino
  wget https://raw.github.com/webconn/OLINUXINO/master/SOFTWARE/A13/TOUCHSCREEN/tslib.patch
       patch -p0 < tslib.patch
  ./autogen.sh
  ./configure --host=arm-linux-gnueabihf --prefix=/usr/local/tslib --enable-static --enable-shared
  make -j5
  su
  export PATH=$PATH:opt/ext_toolchain/bin/
  make install
  

  • Make sure to modify qmake.conf file when installing qt-embedded by including:

    QMAKE_INCDIR  += /usr/local/tslib/include
    QMAKE_LIBDIR  += /usr/local/tslib/lib
    

• Install qt-everywhere on Development Platform
  
  • Steps
    
    1. Install Source

       tar -xvf qt-everywhere-opensource-src-4.6.2.tar.gz /usr/local/qt
       

    2. Replace the whole text in mkspecs/qws/linux-arm-g++/qmake.conf by the following:

       #
       # qmake configuration for building with arm-linux-g++
       #
       include(../../common/gcc-base-unix.conf)
       include(../../common/g++-unix.conf)
       include(../../common/linux.conf)
       include(../../common/qws.conf)
       
       # modifications to g++.conf
       QMAKE_CC                = arm-linux-gnueabihf-gcc -mcpu=cortex-a8 -mtune=cortex-a8 -O0 -mfpu=neon -lrt
       QMAKE_CXX               = arm-linux-gnueabihf-g++ -mcpu=cortex-a8 -mtune=cortex-a8 -O0 -mfpu=neon -lrt
       QMAKE_LINK              = arm-linux-gnueabihf-g++ -mcpu=cortex-a8 -mtune=cortex-a8 -O0 -mfpu=neon -lrt
       QMAKE_LINK_SHLIB        = arm-linux-gnueabihf-g++ -mcpu=cortex-a8 -mtune=cortex-a8 -O0 -mfpu=neon -lrt
       
       # modifications to linux.conf
       QMAKE_AR                = arm-linux-gnueabihf-ar cqs
       QMAKE_OBJCOPY           = arm-linux-gnueabihf-objcopy
       QMAKE_STRIP             = arm-linux-gnueabihf-strip
       QMAKE_RANLIB            = arm-linux-gnueabihf-ranlib
       
       # tslib
       QMAKE_INCDIR  += /usr/local/tslib/include
       QMAKE_LIBDIR  += /usr/local/tslib/lib
       QMAKE_LFLAGS += -Wl,-rpath-link=/usr/local/tslib/lib
       
       load(qt_config)
       
       

    3. Configure Qt

       make clean; ./configure -embedded arm -prefix /usr/local/qt -little-endian -no-qt3support -no-cups -no-largefile -optimized-qmake -no-openssl -xplatform qws/linux-arm-g++ -nomake tools -nomake examples -no-webkit -opensource -confirm-license -qt-mouse-tslib
       

       • Some optional arguments depending on your requirements
         • Enable touchscreen library support : -qt-mouse-tslib
         • Enable USB keyboard support : -qt-kbd-linuxinput
       • The above options affect the QtGui library so you need to replace only QtGui.so.x.x file on your root filesystem if you are planning to make changes.
    4. Make

       make -j 5
       sudo make install
       

       • Wait for a couple of hours to compile libraries
    5. Install

       su -p
       make install
       

       • libraries will be installed in usr/local/qt/lib
  • Errors
    
    • opt/ext_toolchain/bin../lib/gcc/arm-linux-gnueabihf/4.7.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lbootstrap

    http://www.qtcentre.org/archive/index.php/t-41850.html

• Copy Libraries Over to Device
  
  • Steps
    
    1. Copy qt libraries to device.

       rsync -rtvz -a -e "ssh -p 22122" /usr/local/qt/ root@192.168.12.200:/usr/local/qt/
       

    2. Add some environment variables to by adding the following lines to /etc/environment.

       LD_LIBRARY_PATH=/usr/local/qt/lib
       QTDIR=/usr/local/qt
       QWS_MOUSE_PROTO=tslib:/dev/input/event2
       QWS_DISPLAY=LinuxFB:mmWidth=310:mmHeight=190
       

       • To add mouse support you could have a line such as:

         export QWS_MOUSE_PROTO=IntelliMouse:/dev/input/event2
         

    3. Try running a sample application. You should have demos installed at usr/local/qt/demos/embedded
       • Try running styledemo:

         cd /usr/local/qt/demos/embedded/
         ./styledemo/styledemo -qws
         

       • Or fluidlauncher

         cd /usr/local/qt/demos/embedded/
         ./fluidlauncher/fluidlauncher -qws
         

  • Warning
    
    • /dev/input/event# may change depending on the ordering and number of USB inputs you have plugged in.
    • Booting with a mouse and a keyboard plugged in will result in a different event # for touchscreen than without.
    • To check what different events are, trying inputting data with the mouse/keyboard/touchscreen and seeing which outputs data

      cat /dev/input/event1 | hexdump
      

• http://qt-project.org/wiki/Building_Qt_for_Embedded_Linux
• http://qt-project.org/doc/qt-4.8/qt-embedded-install.html
• https://www.olimex.com/forum/index.php?topic=399.0

  ./configure -xplatform qws/linux-arm-g++ -embedded arm -prefix /usr/qtarm/usr/local/qt-embedded -qt-gfx-linuxfb -qt-gfx-vnc -no-largefile -exceptions -no-accessibility -no-qt3support -no-sse2 -qt-zlib -no-gif -no-libtiff -qt-libpng -no-libmng -qt-libjpeg -openssl -no-nis -no-cups -depths 16 -qt-kbd-linuxinput -nomake demos -nomake examples -qt-mouse-linuxinput -qt-mouse-tslib
  

• https://code.google.com/p/a13-olinuxino/wiki/PageName
• https://www.olimex.com/forum/index.php?topic=751.msg3702#msg3702
• http://suchakra.wordpress.com/2011/05/30/developing-qt-apps/
• https://code.google.com/p/a13-olinuxino/source/browse/CrossNG.wiki?repo=wiki
• Getting started with Qt.pdf
  • has working notes for proper installation of tslib.

////////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------ :Libraries:
//                      _    _ _                 _        
//                     | |  (_) |__ _ _ __ _ _ _(_)___ ___
//                     | |__| | '_ \ '_/ _` | '_| / -_|_-<
//                     |____|_|_.__/_| \__,_|_| |_\___/__/
//                                                        
// -----------------------------------------------------------------------------
#include "mainwindow.h"
#include <QApplication>
#include <QWSServer>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);


    // Change the background Color
    QPalette pal = a.palette();
    pal.setColor(QPalette::Window, Qt::black);
    a.setPalette(pal);

#ifdef Q_WS_QWS
    QWSServer::setCursorVisible( false );
#endif

    // Start the GUI
    MainWindow w;
    w.showFullScreen();
    w.show();

    // Exit the program
    return a.exec();
}

////////////////////////////////////////////////////////////////////////////////
/**
 *  @file mainwindow.cpp
 *  @brief A basic Vital Vio Controller.
 *
 *  A graphical interface to control lights.
 *
 *  @title Vital Vio
 *  @author Nicholas Guthrie
 *  @web http//nickguthrie.com/embedd_gui/doc/
 *  @created July 29, 2013
 *
 */
////////////////////////////////////////////////////////////////////////////////
/**
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
////////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------ :Libraries:
//                      _    _ _                 _
//                     | |  (_) |__ _ _ __ _ _ _(_)___ ___
//                     | |__| | '_ \ '_/ _` | '_| / -_|_-<
//                     |____|_|_.__/_| \__,_|_| |_\___/__/
//
// -----------------------------------------------------------------------------
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPushButton>
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief Sets up the Main Interface.
 */
////////////////////////////////////////////////////////////////////////////////
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    // Set up User Interface
    ui->setupUi(this);
    this->DeleteButtonInit();
}
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief Window deconstructor.
 */
////////////////////////////////////////////////////////////////////////////////
MainWindow::~MainWindow()
{
    delete ui;
}
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief Initializes the on default "off state" buton.
 */
////////////////////////////////////////////////////////////////////////////////
void MainWindow::DeleteButtonInit()
{
    this->deleteButton = new QPushButton(this);
    this->deleteButton->setStyleSheet("background-color: black;"
                                      "selection-background-color: black;");
    this->deleteButton->setFixedSize(500,300);
    connect(deleteButton, SIGNAL(pressed()), this, SLOT(DeleteButtonHide()));
}
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief Hides the "off state" button.
 */
////////////////////////////////////////////////////////////////////////////////
void MainWindow::DeleteButtonHide()
{
    this->deleteButton->setVisible(false);
}
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief Makes the screen go blank (turns the lights off).
 */
////////////////////////////////////////////////////////////////////////////////
void MainWindow::on_offButton_clicked()
{
    this->deleteButton->setVisible(true);
}

// void MainWindow::on_label_3_linkActivated()
// {
//     ui->tabWidget->setCurrentIndex(0);
// }

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPushButton>
#include <QProxyStyle>
#include <QScrollBar>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{


    Q_OBJECT

        public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

    private slots:
    void DeleteButtonInit();
    void DeleteButtonHide();
    void on_offButton_clicked();

    //void on_label_3_linkActivated();

private:
    Ui::MainWindow *ui;
    QPushButton *deleteButton;
};


// Override style for better Touchscreen handling
class MyProxyStyle : public QProxyStyle
{
  public:
    int pixelMetric ( PixelMetric metric, const QStyleOption * option = 0,
                      const QWidget * widget = 0 ) const
    {
        switch(metric) {
          case PM_SliderControlThickness  : return 50;
          default                         : return
                (QProxyStyle::pixelMetric(metric,option,widget));
        }
    }

};




#endif // MAINWINDOW_H

CANNOT INCLUDE FILE ../src/vital_vio/vital_vio/moc_mainwindow.cpp

CANNOT INCLUDE FILE ../src/vital_vio/vital_vio/ui_mainwindow.h

CANNOT INCLUDE FILE ../src/vital_vio/vital_vio/!mainwindow.ui

• MainWindow.cpp
  

  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @file mainwindow.cpp
   *  @brief A basic 5 channel controller program.
   *
   *  The program allows a person to turn a light on and off, as well as control 5
   *  channels.
   *  
   *  @title Burgler
   *  @author Nicholas Guthrie
   *  @web http//nickguthrie.com
   *  @created July 23, 2013
   * 
   */
  ////////////////////////////////////////////////////////////////////////////////
  /**
   * This program is free software: you can redistribute it and/or modify it under
   * the terms of the GNU General Public License as published by the Free Software
   * Foundation, either version 3 of the License, or (at your option) any later
   * version.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
   * details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  ////////////////////////////////////////////////////////////////////////////////
  //------------------------------------------------------------------ :Libraries:
  //                      _    _ _                 _        
  //                     | |  (_) |__ _ _ __ _ _ _(_)___ ___
  //                     | |__| | '_ \ '_/ _` | '_| / -_|_-<
  //                     |____|_|_.__/_| \__,_|_| |_\___/__/
  //                                                        
  // -----------------------------------------------------------------------------
  #include "mainwindow.h"
  #include "channel.h"
  #include "ui_mainwindow.h"
  #include <QTimer>
  #include <string>
  
  //--------------------------------------------------------------------- :Global:
  //                            ___ _     _          _ 
  //                           / __| |___| |__  __ _| |
  //                          | (_ | / _ \ '_ \/ _` | |
  //                           \___|_\___/_.__/\__,_|_|
  //                                                   
  // -----------------------------------------------------------------------------
  #define INCRAMENT 10
  #define NUM_CHAN 5
  
  int PUSHED;
  int mode;
  channel * cholder;
  
  MainWindow::MainWindow(QWidget *parent) :
      QMainWindow(parent),
      ui(new Ui::MainWindow)
  {
      PUSHED = 0;
      ui->setupUi(this); 
  
      ////////////////////////////////////////
      // Sliders - Connect sliders to LCD
      ////////////////////////////////////////
      /*connect(ui->verticalSlider,SIGNAL(valueChanged(int)),
        ui->progressBar,SLOT(setValue(int))); */
      // connect(ui->hslider_01, SIGNAL(valueChanged(int)),
      //      ui->lcd_01, SLOT(display(int)));
      // connect(ui->hslider_02, SIGNAL(valueChanged(int)),
      //      ui->lcd_02, SLOT(display(int)));
      // connect(ui->hslider_03, SIGNAL(valueChanged(int)),
      //      ui->lcd_03, SLOT(display(int)));
      // connect(ui->hslider_04, SIGNAL(valueChanged(int)),
      //      ui->lcd_04, SLOT(display(int)));
      // connect(ui->hslider_05, SIGNAL(valueChanged(int)),
      //      ui->lcd_05, SLOT(display(int)));
  
      ////////////////////////////////////////
      // Channels
      ////////////////////////////////////////
      cholder = new channel[NUM_CHAN];
  
      // Testing
      for( int i=0; i<NUM_CHAN; i++ )
      {
          mode = i;
          cholder[i].set_value(i+50);
          UpdateLCD();
      }
  
  
      ////////////////////////////////////////
      // Button Incramenting
      ////////////////////////////////////////
      number = 0;
      timerTimeout = 0;
      timer = new QTimer(this);
  
      // Incrament Button Connections
      connect(timer, SIGNAL(timeout()), this, SLOT(doIncrement()));
      connect(ui->pb_value_incrament, SIGNAL(pressed()), this, SLOT(buttonPressed()));
      connect(ui->pb_value_incrament, SIGNAL(released()), this, SLOT(buttonReleased()));
      connect(ui->pb_value_decrament, SIGNAL(pressed()), this, SLOT(buttonPressed()));
      connect(ui->pb_value_decrament, SIGNAL(released()), this, SLOT(buttonReleased()));
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Window deconstructor.
   */
  ////////////////////////////////////////////////////////////////////////////////
  MainWindow::~MainWindow()
  {
      delete ui;
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Updates the LCD of the current mode set.  This function should be
   *  called every time a channel value is modified with the appropriate mode.
   *  @warning Does not verify the mode is valid.
   */
  ////////////////////////////////////////////////////////////////////////////////
  wvoid MainWindow::UpdateLCD()
  {
      // Update Slider
      ui->channelSlider->setRange(cholder[mode].get_min(), cholder[mode].get_max());
      ui->channelSlider->setValue(cholder[mode].get_value());
  
      // Update LCD Screens
      switch (mode)
      {
      case 0:
          ui->lcd_0->display(cholder[0].get_value());
          break;
      case 1:
          ui->lcd_1->display(cholder[1].get_value());
          break;
      case 2:
          ui->lcd_2->display(cholder[2].get_value());
          break;
      case 3:
          ui->lcd_3->display(cholder[3].get_value());
          break;
      case 4:
          ui->lcd_4->display(cholder[4].get_value());
          break;
      default:
          // ERROR
          break;
      }    
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Modifies the mode for button 0.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_cbutton_0_clicked()
  {
      mode = 0;
      ui->mode_label->setText("Channel 0");
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Modifies the mode for button 1.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_cbutton_1_clicked()
  {
      mode = 1;
      ui->mode_label->setText("Channel 1");
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Modifies the mode for button 2.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_cbutton_2_clicked()
  {
      mode = 2;
      ui->mode_label->setText("Channel 2");
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Modifies the mode for button 3.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_cbutton_3_clicked()
  {
      mode = 3;
      ui->mode_label->setText("Channel 3");
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Modifies the mode for button 4.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_cbutton_4_clicked()
  {
      mode = 4;
      ui->mode_label->setText("Channel 4");
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Sets a channel to its minimum value.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_pb_value_off_clicked()
  {
      cholder[mode].set_value(cholder[mode].get_min());
      UpdateLCD();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Sets a channel to its maximum
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_pb_value_full_clicked()
  {
      cholder[mode].set_value(cholder[mode].get_max());
      UpdateLCD();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Sets a channel to half of its value (max - min)/2.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_pb_value_half_clicked()
  {
      int val = (cholder[mode].get_max()
                 - cholder[mode].get_min()) / 2;
      cholder[mode].set_value(val);
      UpdateLCD();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Watches if the slider value changes and modifies the channel.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_channelSlider_valueChanged(int value)
  {
      int val = ui->channelSlider->value();
      cholder[mode].set_value(val);
      UpdateLCD();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Incraments the channel while the incrament button is held down.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_pb_value_incrament_pressed()
  {
      incrament = true;
      timerTimeout = 2000;
      doIncrement();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Decraments the channel while the incrament button is held down.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::on_pb_value_decrament_pressed()
  {
      incrament = false;
      timerTimeout = 2000;
      doIncrement();
  
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief A timer function for the incrament/decrament buttons.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::buttonPressed()
  {
      timerTimeout = 2000;
      doIncrement();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief A timer function for the incrament/decrament buttons.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::buttonReleased()
  {
      timer->stop();
  }
  ////////////////////////////////////////////////////////////////////////////////
  /**
   *  @brief Timer function that modifies the values for incrament and decrament.
   */
  ////////////////////////////////////////////////////////////////////////////////
  void MainWindow::doIncrement()
  {
      // If the incrament button, incrament channel
      if( incrament )
          cholder[mode].incrament();
      // If the decrament button, decrament channel
      else
          cholder[mode].decrament();
      //ui->label->setText(QString("Value: %1").arg(number));
      if( timerTimeout > 10 )
          timerTimeout = timerTimeout / 4;
      timer->start(timerTimeout);
      UpdateLCD();
  }
  

• MainWindow.h
  

  #ifndef MAINWINDOW_H
  #define MAINWINDOW_H
  
  #include <QMainWindow>
  
  namespace Ui {
  class MainWindow;
  }
  
  class MainWindow : public QMainWindow
  {
      Q_OBJECT
  
  public:
      explicit MainWindow(QWidget *parent = 0);
      void UpdateLCD();
      ~MainWindow();
  
  private slots:
      void on_cbutton_0_clicked();
      void on_cbutton_1_clicked();
      void on_cbutton_2_clicked();
      void on_cbutton_3_clicked();
      void on_cbutton_4_clicked();
      void on_pb_value_off_clicked();
      void on_pb_value_full_clicked();
      void on_pb_value_half_clicked();
      void on_channelSlider_valueChanged(int value);
      void on_pb_value_incrament_pressed();
      void on_pb_value_decrament_pressed();
  
  protected slots:
      void buttonPressed();
      void buttonReleased();
      void doIncrement();
  
  
  private:
      Ui::MainWindow *ui;
  
      // Button Incramenter
      QTimer *timer;
      int timerTimeout;
      int number;
      bool incrament;
  };
  
  #endif // MAINWINDOW_H
  

• moc_mainwindow.cpp
  CANNOT INCLUDE FILE ../src/testing/Burgler/moc_mainwindow.cpp

• ui_mainwindow.h
  CANNOT INCLUDE FILE ../src/testing/Burgler/ui_mainwindow.h

• mainwindow.ui
  

  <?xml version="1.0" encoding="UTF-8"?>
  <ui version="4.0">
   <class>MainWindow</class>
   <widget class="QMainWindow" name="MainWindow">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
      <width>480</width>
      <height>272</height>
     </rect>
    </property>
    <property name="minimumSize">
     <size>
      <width>480</width>
      <height>272</height>
     </size>
    </property>
    <property name="maximumSize">
     <size>
      <width>480</width>
      <height>272</height>
     </size>
    </property>
    <property name="windowTitle">
     <string>MainWindow</string>
    </property>
    <widget class="QWidget" name="centralWidget">
     <widget class="QLabel" name="label">
      <property name="geometry">
       <rect>
        <x>10</x>
        <y>10</y>
        <width>371</width>
        <height>41</height>
       </rect>
      </property>
      <property name="styleSheet">
       <string notr="true">image: url(:/img/rcos.png);</string>
      </property>
      <property name="text">
       <string/>
      </property>
     </widget>
     <widget class="QTabWidget" name="tabWidget">
      <property name="geometry">
       <rect>
        <x>0</x>
        <y>60</y>
        <width>481</width>
        <height>251</height>
       </rect>
      </property>
      <property name="focusPolicy">
       <enum>Qt::StrongFocus</enum>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(51, 51, 51);</string>
      </property>
      <property name="tabPosition">
       <enum>QTabWidget::West</enum>
      </property>
      <property name="tabShape">
       <enum>QTabWidget::Rounded</enum>
      </property>
      <property name="currentIndex">
       <number>0</number>
      </property>
      <property name="iconSize">
       <size>
        <width>42</width>
        <height>50</height>
       </size>
      </property>
      <widget class="QWidget" name="tab">
       <attribute name="icon">
        <iconset resource="Loot.qrc">
         <normaloff>:/img/gpl_logo_sideways_colored.png</normaloff>:/img/gpl_logo_sideways_colored.png</iconset>
       </attribute>
       <attribute name="title">
        <string/>
       </attribute>
       <widget class="QPushButton" name="pb_down">
        <property name="geometry">
         <rect>
          <x>20</x>
          <y>60</y>
          <width>171</width>
          <height>91</height>
         </rect>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>40</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">color: rgb(255, 255, 255);
  background-color: rgb(148, 3, 0);
  alternate-background-color: rgb(148, 3, 0);</string>
        </property>
        <property name="text">
         <string>OFF</string>
        </property>
       </widget>
       <widget class="QPushButton" name="pb_up">
        <property name="geometry">
         <rect>
          <x>210</x>
          <y>60</y>
          <width>171</width>
          <height>91</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>171</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>40</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(84, 152, 91);</string>
        </property>
        <property name="text">
         <string>ON</string>
        </property>
       </widget>
      </widget>
      <widget class="QWidget" name="tab_3">
       <attribute name="icon">
        <iconset resource="Loot.qrc">
         <normaloff>:/img/gpl_logo_sideways_red.png</normaloff>:/img/gpl_logo_sideways_red.png</iconset>
       </attribute>
       <attribute name="title">
        <string/>
       </attribute>
       <widget class="QFrame" name="frame">
        <property name="geometry">
         <rect>
          <x>0</x>
          <y>0</y>
          <width>191</width>
          <height>211</height>
         </rect>
        </property>
        <property name="frameShape">
         <enum>QFrame::StyledPanel</enum>
        </property>
        <property name="frameShadow">
         <enum>QFrame::Raised</enum>
        </property>
        <widget class="QPushButton" name="cbutton_0">
         <property name="geometry">
          <rect>
           <x>0</x>
           <y>0</y>
           <width>100</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>100</width>
           <height>40</height>
          </size>
         </property>
         <property name="maximumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
         <property name="styleSheet">
          <string notr="true">background-color: rgb(255, 0, 0);</string>
         </property>
         <property name="text">
          <string>channel 0</string>
         </property>
        </widget>
        <widget class="QPushButton" name="cbutton_1">
         <property name="geometry">
          <rect>
           <x>0</x>
           <y>40</y>
           <width>100</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>100</width>
           <height>40</height>
          </size>
         </property>
         <property name="maximumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
         <property name="styleSheet">
          <string notr="true">background-color: rgb(255, 170, 0);</string>
         </property>
         <property name="text">
          <string>channel 1</string>
         </property>
        </widget>
        <widget class="QPushButton" name="cbutton_2">
         <property name="geometry">
          <rect>
           <x>0</x>
           <y>80</y>
           <width>100</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>100</width>
           <height>40</height>
          </size>
         </property>
         <property name="maximumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
         <property name="styleSheet">
          <string notr="true">background-color: rgb(85, 255, 0);</string>
         </property>
         <property name="text">
          <string>channel 2</string>
         </property>
        </widget>
        <widget class="QPushButton" name="cbutton_3">
         <property name="geometry">
          <rect>
           <x>0</x>
           <y>120</y>
           <width>100</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>100</width>
           <height>40</height>
          </size>
         </property>
         <property name="maximumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
         <property name="styleSheet">
          <string notr="true">background-color: rgb(0, 170, 255);</string>
         </property>
         <property name="text">
          <string>channel 3</string>
         </property>
        </widget>
        <widget class="QPushButton" name="cbutton_4">
         <property name="geometry">
          <rect>
           <x>0</x>
           <y>160</y>
           <width>100</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>100</width>
           <height>40</height>
          </size>
         </property>
         <property name="maximumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
         <property name="styleSheet">
          <string notr="true">background-color: rgb(85, 85, 255);</string>
         </property>
         <property name="text">
          <string>channel 4</string>
         </property>
        </widget>
        <widget class="QLCDNumber" name="lcd_0">
         <property name="geometry">
          <rect>
           <x>100</x>
           <y>0</y>
           <width>80</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
        </widget>
        <widget class="QLCDNumber" name="lcd_1">
         <property name="geometry">
          <rect>
           <x>100</x>
           <y>40</y>
           <width>80</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
        </widget>
        <widget class="QLCDNumber" name="lcd_2">
         <property name="geometry">
          <rect>
           <x>100</x>
           <y>80</y>
           <width>80</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
        </widget>
        <widget class="QLCDNumber" name="lcd_3">
         <property name="geometry">
          <rect>
           <x>100</x>
           <y>120</y>
           <width>80</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
        </widget>
        <widget class="QLCDNumber" name="lcd_4">
         <property name="geometry">
          <rect>
           <x>100</x>
           <y>160</y>
           <width>80</width>
           <height>40</height>
          </rect>
         </property>
         <property name="minimumSize">
          <size>
           <width>80</width>
           <height>40</height>
          </size>
         </property>
        </widget>
       </widget>
       <widget class="QPushButton" name="pb_value_full">
        <property name="geometry">
         <rect>
          <x>340</x>
          <y>50</y>
          <width>60</width>
          <height>51</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>60</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>20</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(84, 152, 91);</string>
        </property>
        <property name="text">
         <string>Full</string>
        </property>
       </widget>
       <widget class="QPushButton" name="pb_value_off">
        <property name="geometry">
         <rect>
          <x>200</x>
          <y>50</y>
          <width>60</width>
          <height>51</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>60</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>20</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(148, 3, 0);</string>
        </property>
        <property name="text">
         <string>Off</string>
        </property>
       </widget>
       <widget class="QPushButton" name="pb_value_decrament">
        <property name="geometry">
         <rect>
          <x>200</x>
          <y>110</y>
          <width>91</width>
          <height>51</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>80</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Symbol</family>
          <pointsize>36</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(148, 3, 0);</string>
        </property>
        <property name="text">
         <string>-</string>
        </property>
       </widget>
       <widget class="QPushButton" name="pb_value_incrament">
        <property name="geometry">
         <rect>
          <x>300</x>
          <y>110</y>
          <width>101</width>
          <height>51</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>80</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Symbol</family>
          <pointsize>36</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(84, 152, 91);</string>
        </property>
        <property name="text">
         <string>+</string>
        </property>
       </widget>
       <widget class="QSlider" name="channelSlider">
        <property name="geometry">
         <rect>
          <x>200</x>
          <y>180</y>
          <width>201</width>
          <height>21</height>
         </rect>
        </property>
        <property name="focusPolicy">
         <enum>Qt::ClickFocus</enum>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(245, 224, 176, 255), stop:0.09 rgba(246, 189, 237, 255), stop:0.14 rgba(194, 207, 246, 255), stop:0.19 rgba(184, 160, 168, 255), stop:0.25 rgba(171, 186, 248, 255), stop:0.32 rgba(243, 248, 224, 255), stop:0.385 rgba(249, 162, 183, 255), stop:0.47 rgba(100, 115, 124, 255), stop:0.58 rgba(251, 205, 202, 255), stop:0.65 rgba(170, 128, 185, 255), stop:0.75 rgba(252, 222, 204, 255), stop:0.805 rgba(206, 122, 218, 255), stop:0.86 rgba(254, 223, 175, 255), stop:0.91 rgba(254, 236, 244, 255), stop:1 rgba(255, 191, 221, 255));</string>
        </property>
        <property name="orientation">
         <enum>Qt::Horizontal</enum>
        </property>
       </widget>
       <widget class="QLabel" name="mode_label">
        <property name="geometry">
         <rect>
          <x>200</x>
          <y>10</y>
          <width>201</width>
          <height>31</height>
         </rect>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>18</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">color: rgb(255, 255, 255);</string>
        </property>
        <property name="text">
         <string>Select Channel</string>
        </property>
       </widget>
       <widget class="QPushButton" name="pb_value_half">
        <property name="geometry">
         <rect>
          <x>270</x>
          <y>50</y>
          <width>60</width>
          <height>51</height>
         </rect>
        </property>
        <property name="minimumSize">
         <size>
          <width>60</width>
          <height>27</height>
         </size>
        </property>
        <property name="font">
         <font>
          <family>Abyssinica SIL</family>
          <pointsize>20</pointsize>
         </font>
        </property>
        <property name="styleSheet">
         <string notr="true">background-color: rgb(255, 85, 0);</string>
        </property>
        <property name="text">
         <string>1/2</string>
        </property>
       </widget>
      </widget>
      <widget class="QWidget" name="tab_2">
       <attribute name="icon">
        <iconset resource="Loot.qrc">
         <normaloff>:/img/gpl_logo_sideways_blue.png</normaloff>:/img/gpl_logo_sideways_blue.png</iconset>
       </attribute>
       <attribute name="title">
        <string/>
       </attribute>
      </widget>
     </widget>
    </widget>
   </widget>
   <layoutdefault spacing="6" margin="11"/>
   <resources>
    <include location="Loot.qrc"/>
   </resources>
   <connections/>
  </ui>
  

• Change the background color of the qt application

CANNOT INCLUDE FILE ../src/testing/qt/hello_qt/mainwindow.cpp

CANNOT INCLUDE FILE ../src/testing/qt/hello_qt/mainwindow.h

CANNOT INCLUDE FILE ../src/testing/qt/hello_qt/moc_mainwindow.cpp

CANNOT INCLUDE FILE ../src/testing/qt/hello_qt/ui_mainwindow.h

CANNOT INCLUDE FILE ../src/testing/qt/hello_qt/mainwindow.ui

////////////////////////////////////////////////////////////////////////////////
/**
 *  @file hello_world.cpp
 *  @brief Test basic functionality.
 *
 *  @title Hello World
 *  @author Nicholas Guthrie
 *  @web http//nickguthrie.com
 *  @created June 11, 2013
 *
 *  Compile with: g++ -g -o ../../bin/testing/hello_world hello_world.cpp
 */
////////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------ :Libraries:
//                      _    _ _                 _
//                     | |  (_) |__ _ _ __ _ _ _(_)___ ___
//                     | |__| | '_ \ '_/ _` | '_| / -_|_-<
//                     |____|_|_.__/_| \__,_|_| |_\___/__/
//
// -----------------------------------------------------------------------------
// Input-Output
#include <iostream>             /* input-output stream - necessary for cout */
//#include <fstream>            /* to use file stream */
using namespace std;            /* to not need std:: on all io */
//Strings
//#include <string>             /* to use strings */
//#include <sstream>            /* use strings like cout */
//#include <cstdlib>            /* for atoi */
//#include <cctype>             /* for atoi */
//#include <vector>
//#include <map>
//Math
//#include <math>               /* pow, sqrt and use compile flag -lm */
//#include <algorithm>          /* use sort and find */

//--------------------------------------------------------------------- :Global:
//                            ___ _     _          _
//                           / __| |___| |__  __ _| |
//                          | (_ | / _ \ '_ \/ _` | |
//                           \___|_\___/_.__/\__,_|_|
//
// -----------------------------------------------------------------------------
//const int EMPTY = -1;
//----------------------------------------------------------------- :Prototypes:
//                  ___         _       _
//                 | _ \_ _ ___| |_ ___| |_ _  _ _ __  ___ ___
//                 |  _/ '_/ _ \  _/ _ \  _| || | '_ \/ -_|_-<
//                 |_| |_| \___/\__\___/\__|\_, | .__/\___/__/
//                                          |__/|_|
//
//-----------------------------------------------------------------------------
int Example_Function();
//----------------------------------------------------------------------- :Main:
//                              __  __      _
//                             |  \/  |__ _(_)_ _
//                             | |\/| / _` | | ' \
//                             |_|  |_\__,_|_|_||_|
//
// -----------------------------------------------------------------------------
int main ( int argc, char* argv[] )
{
    //////////////////////////////
    // Variables
    //////////////////////////////
    cout << "hello world" << endl;

    //////////////////////////////
    // Input
    //////////////////////////////

    //////////////////////////////
    // Output
    //////////////////////////////

    //////////////////////////////
    // Exititing
    //////////////////////////////
    return 0;
}
//------------------------------------------------------------------ :Functions:
//                      ___             _   _
//                     | __|  _ _ _  __| |_(_)___ _ _  ___
//                     | _| || | ' \/ _|  _| / _ \ ' \(_-<
//                     |_| \_,_|_||_\__|\__|_\___/_||_/__/
//
//
//-----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/**
 *  @brief
 *  @warning
 *  @param[in]
 *  @return
 */
////////////////////////////////////////////////////////////////////////////////
int Example_Function()
{
    return -1;
}

• Turn it On
  

  echo 1 > /sys/devices/virtual/misc/sun4i-gpio/pin/pg9
  

• Turn it Off
  

  echo 0 > /sys/devices/virtual/misc/sun4i-gpio/pin/pg9
  

////////////////////////////////////////////////////////////////////////////////
/**
 *  @file gpio.c
 *  @brief Toggle pg9 LED gpio.
 *
 *  Turns the Status LED on for two seconds, off for two seconds, then exits.
 *
 *  @title gpio.c
 *  @author Nicholas Guthrie
 *  @created 2013-06-13
 *
 *  Compile with: gcc gpio.c -o ../../bin/testing/gpio
 */
////////////////////////////////////////////////////////////////////////////////
/**
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */
////////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------ :Libraries:
//                      _    _ _                 _
//                     | |  (_) |__ _ _ __ _ _ _(_)___ ___
//                     | |__| | '_ \ '_/ _` | '_| / -_|_-<
//                     |____|_|_.__/_| \__,_|_| |_\___/__/
//
// -----------------------------------------------------------------------------
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h> //for sleep

//----------------------------------------------------------------------- :Main:
//                              __  __      _
//                             |  \/  |__ _(_)_ _
//                             | |\/| / _` | | ' \
//                             |_|  |_\__,_|_|_||_|
//
// -----------------------------------------------------------------------------
int main()
{
    // Variables
    char s_0[] = "0";
    char s_1[] = "1";
    int fd;
    int num = 0;

    // Open GPIO Pin
    if( (fd=open("/sys/devices/virtual/misc/sun4i-gpio/pin/pg9", O_RDWR)) < 0 )
    {
        printf("ERROR Opening file, Exiting.\n");
        return 1;
    }
    else
    {
        printf("Sucessfully opened file.\n");
    }

    // Turn LED On
    if( write(fd, s_1, strlen(s_1)) < 0 )
    {
        printf("  Error writing s_1, Exiting\n");
    }
    else
    {
        printf("  LED ON\n");
    }

    sleep(2);

    // Turn LED Off
    if( write(fd, s_0, strlen(s_0)) < 0 )
    {
        printf("  Error writing s_0, Exiting\n");
    }
    else
    {
        printf("  LED OFF\n");
    }

    sleep(2);

    // Close file
    if( close(fd)<0 )
    {
        printf("ERROR closing file, Exiting.\n");
        return 1;
    }
    else
    {
        printf("Sucessfully closed file.\n");
    }
}

• A13 Olinuxino Playing with GPIOS