Posts Tagged ‘laser beam communication’:

2022-05-08 Audio 10 Meters Over Laser Beam

I got this idea; instead of using a microphone and preamp at the end of a twisted pair, I would build a microphone, preamp and modulate a red laser with the audio and pick up the audio about ten yards away with a light detector. Notice that it runs on two 2V photovoltaic cells in

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