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infra red detection

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    How to receive an IR signal of air conditioner signal for reverve engineering?

    I have white brand of air conditioner, so i have no idea what IR protocol it uses, is there any solution that uses a IR receiver in a way that i can reverse engineer? It can be something that uses a Arduino Uno (i have one). After i find a solution for IR signal receiver that works, in future...
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    Infrared detection

    Hi everyone, I want to make a infra red detection like those used for "laser keyboard" Do you have any ideas, shcematics, development kit or code example (PC) to suggest me ? I need to detect forms such as fingers on a 40'' diagonal surface (maximum) Also, I would like to project a display...

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