Comment on pump up the jamz

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stevestevesteve@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

An LED (or photodiode used as one) is a fairly simplistic device compared to an assembled receiver / transmitter. Just like you can burn gasoline in a car but you can’t push a car to turn the engine to make gasoline - it’s a complex system that really only works one way.

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