Tag · 2 circuits
#beginner
beginner circuits ready to build, each with a parts list, a schematic and a picture showing how to connect it. Want to change something? Make your own copy in one click.
Newest circuits
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LDR Dark Detector (LED Turns On in the Dark)
A dark detector with an LDR (photoresistor) and a BC557 PNP transistor. When it gets dark, the LDR's resistance rises, the transistor turns on and the LED…
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LDR Light Detector (LED Turns On in Light)
A simple light detector with an LDR (photoresistor) and a BC547 transistor. When light hits the LDR, its resistance drops, the transistor turns on and the LED…
