Like any good DIY-loving hoarder, I’ve got a few remote controls lying around in my drawer that I always neglect to throw away when I tidy things up. This made me think about building an IR receiver module. The IR signals from remotes are pulse waves after all, which could be used for modulation of stuff in the rack or even as oscillators. Maybe one would have to do some frequency division if the pulses are above audio range, but that shouldn’t be a problem with the usual divider/counter ICs.
Unfortunately, I somehow smoked my one IR receiver component just now, which I had collecting dust in my drawer for a few years, so I need to order new ones. In the meantime, I wanted to ask if anybody else of you had an idea like this and could weigh in with some experience if this is a feasible or useful endeavor.
There isn't very much variety with signals of the same remote control, but different remotes do have noticeable differences in sound. Often the pulses only fire off once per button press and are very fast. What works better are buttons like volume up/down which will fire continuously when being held down. I need to try out dividing the signals down even slower and using them as CV, where I think changes might be more noticeable than when played as audio.
Here's the VS 1838B's pinout: Because the signal is high without an IR signal present, you need to invert it to get usable gates that go high when you press the remote buttons. You can do this easily with the AE Modular Logic module, or an NPN transistor if you want to DIY. Then it's also useful to make the pulse sequences slower, which can be done with a AE Modular Divider module, or of course ICs for that purpose.