Do you have an old TV remote? What if I told you can create your code to make communication with this remote controller.
You can do it!
Infrared remote control is cool, the idea of this blog post is turn it in presentation tool. It is easy with this remote to keep your finger on the advance button and simply advance slides — or turn the screen back, at your favorite PDF viewer.
Think like MacGyver, to handle a difficult situation through improvisation using only available materials to do an intelligent activity...
Its Ok, lets go to the hack...
First step you need get some things:
- Computer with Unix Like OS(at my tests i using Fedora Linux)
- Any TV remote control (i use a samsung model “AA59-00469A”)
- Arduino nano 12,00 USD
- IR recv (model “1838B”) - 2,00 USD
- Jumpers 1,00 USD
- Breadboard 2,50 USD
Total of costs is 17.50 USD, looks good is not expensive, try following this image to assembly your hardware:
- Green wire is GND
- Orange wire is 5v
- Yellow wire is pin 6(this is input to make communication with arduino)
- USB connected at arduino(usually at mini series uses FTDI input)
Second step mapping your TV remote control:
- $ git clone https://github.com/shirriff/Arduino-IRremote
- $ mv Arduino-IRremote ArduinoRemote; sudo cp -rf ArduinoRemote/ /usr/share/arduino/libraries
At your arduino IDE tool, you can view examples of use it at tab "File", load example that show the input of serial, look this following:
The function Serial.println() shows the output of serial input. for example: when you hold the button one of TV remote control, this action shows the hexadecimal value "E13DDA28".
Done the mapping process of buttons, the next step is use syscall open() to open the file "/dev/ttyUSB0" and use the syscall read() to get INPUTs of arduino device, remember to put diferent condition at each button input of device.
at deb based distros uses apt-get install pkg_name-dev
To get final code, rewrite this lines 152 and 159 with address of your button mapping, compile it and run:
$ git clone https://github.com/CoolerVoid/arduino_ppt_walk
$ gcc IR_remote.c -o IR_remote -lX11 -lXtst -Wall
$ ./IR_remote /dev/ttyUSB0
Look this following:
https://www.youtube.com/watch?v=Wx64BfLgxQU
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