IR transmitter

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IR transmitter

Post by FuzzyPanda » Fri Sep 12, 2014 11:36 pm


This is my first time really working with a PIC microcontroller. I have a bunch of PIC's that I aquired when I bought the starter kit and programmer and wanted to do a little project. My school has a variety of lights in our year 12 Block that are controlled using an IR remote. I have been able to record the signals, one for on and the other for off, that are used to controll the lights. I used the USB IR toy and AnalysIR to record the signal and it re-transmits fine. What I'd like to do is make a small battery handheld similar to the remote to transmit the signal. My question is, does anyone know how I would be able to store a signal, or RAW code as I know the pulse timings and the frequency, to transmit the signals using a PIC mciro.

As of yet I have not been able to find anything that can help me.

I assume it would be set up PWM on the PIC, set up a transistor circuit with an IR LED and turn on LED for certain time, turn of for certain time, repeat.

CAn anyone help me to get started with something like this?



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Re: IR transmitter

Post by jremington » Sat Sep 13, 2014 8:41 pm

You could follow the approach and the circuitry of the TV-Be-Gone remote, which turns off most TV sets. This DIY project was created for an ATmega chip, but it would be fairly straightforward to move it to a PIC. Or just use the project board and modify the code.

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