alt Hacker NewsSimilarly most leds are photo diodes, electric motors can be used to generate current, Peltier cells can be used to generate current, and so so forth. Many of such physical processes are invertible.
Similarly most leds are photo diodes, electric motors can be used to generate current, Peltier cells can be used to generate current, and so so forth. Many of such physical processes are invertible.
Yes. Mostly the same basic components--Just optimized for which direction you are going in. I recall using an single in ear speaker as a microphone as one of the experiments in my Radio Shack 101 eperiments electronics kit.