Cheap and cheerful.

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

LILYGO's T-Watch Ultra is an ESP32-S3-based smartwatch development platform that appears to be an upgrade over the previous T ...

La Dolce Audio current drive tube amplifiers challenge traditional designs with user tunable harmonic control and modular ...

Western Electric revives U.S. vacuum tube manufacturing at AXPONA 2026, showcasing 300B and 308B amps and plans for new 12AX7 ...

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

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