Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Thanks for specifying the part, can anyone provide a schematic? The LED isn't going to remain lit all the time, so I don't think it needs a very strong battery, and I'd like to keep the circuit compact, so I'd like to use as small a battery as possible. It's going to use an IR LED. Any help...
I'm looking for a circuit that will do the following. It will plug into a headphone jack and will light up an LED when any audio signal is outputted. The brightness of the LED does not vary depending on the strength of the audio output or the volume of the device, it will always be on when there...
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