LED candles are neat, but they’re very suboptimal for wish-making: you can’t blow them out. Unless you take the circuit from ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

Overwhelmed by all the automation possibilities your smart gadgets offer? You're not alone. Here are three I find useful and ...

A very cool (also warm!) property of the base-emitter junction of (most) small signal BJTs is the ΔVbe temperature-sensing ...

SendspinZero is an open-source, DIY Sendspin audio receiver for your amplifier that relies on off-the-shelf parts costing ...