How to capture and reverse engineer an infrared IR code and use an Arduino or other microcontroller to replay the command.
Oscilloscope and logic analyser capture, coding, troubleshooting, tounge angle, it’s all here.
In this instance Dave captures the NEC (Japanese) code from his Canon video camera remote control on the digital oscilloscope, figures out all the bits and encoding, and writes an Arduino library to replay the code back, and verifies it with his Saleae Logic logic analyser.

Previous simple hack video: http://www.youtube.com/watch?v=vOzaDQmAW0g

CODE: http://gist.github.com/EEVblog/6206934

Forum: http://www.eevblog.com/forum/blog/eevblog-506-ir-remote-control-arduino-protocol-tutorial/

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