I need to capture a signal that is being sent from an emitter (similar to a TV remote). I understand from this question that I can use an infrared receiver to do this.Once this is done, however, I need to be able to continually rebroadcast this signal even when its original source is not broadcasting. Is there a way to save this signal, or does in need to be decoded in some form to be rebroadcasted without the original? How might I go about doing this?

  • \$\begingroup\$ That answer has the signal demodulating/decoded. If you use a microcontroller, you save that input, and then just continually send it out again. \$\endgroup\$ – Passerby Oct 28 '15 at 4:29

There is an IR library for arduino that is pretty good: Arduino-IRremote

A guide on how to use it: A Multi-Protocol Infrared Remote Library for the Arduino

It is capable of recording and replaying a lot of common remotes. The wiring is very easy, a simple device is described here: An Arduino universal remote: record and playback IR signals


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