Here are some DIY LDR switch circuits available on our website and the web. LDR switches are used to switch a relay or other device when light are present or absent. LDRs or Light Dependent Resistors ...

Circuit Scribe: DIY Circuit Kits You'll never believe what you can do with a plain piece of paper paired with the magic of the Circuit Scribe: DIY Circuit Kits. Use the conductive ink pen, sweet ...

Circuit Scribe announced the release of their revolutionary DIY electronic kits, made with just printer paper, a Circuit Scribe pen, and a circuit. A progression from education use to application, the ...

The heart of this diy metal detector circuit is the CS209A IC. The metal detector is built with one 100µH coil that has 40 mm in diameter and is made of 50 turns/0.4 mm wire. CS209A has one oscillator ...