The DIY Electronic Siren circuit described here can create three different US-style siren sounds: DIY police, DIY ambulance and fire engine. The desired sound can be selected using switch S1. The ...

Android: Last week, we discussed Circuit Playground for iOS, a comprehensive electronics reference manual. Android users can get in on the action with ElectroDroid, a collection of electronic ...

A new company called Electroninks is seeking to make DIY electronics child’s play ... literally. Circuit Scribe is a roller-ball pen filled with conductive silver ink that enables the creation of ...

Elecpod serves as an encyclopedia of circuit diagrams for virtually any appliance, machine or device. Their various sections provide circuit diagrams for DIY projects and modifications, ranging from ...

Here’s something for the inner romantics and DIY circuit board assemblers in all of us. Yes, I’m talking to you, my friend; soldering iron in one hand, PCB board in the other, pining to tell your ...