Portable Bluetooth speakers have joined the club of ubiquitous personal electronics. What was once an expensive luxury is now widely accessible thanks to a prolific landscape of manufacturers mass … ...

Bluetooth Audio Amplifier Module (Fosi Audio) The hack here involves fitting the speaker cabinet with new “guts” in the form of a wireless stereo 2×50 watt digital amplifier [Dave] found ...

Miniphonic Arduino-based audio synthesis platform Here, the filter, originally designed for the Arduino UNO R3, which is the weak link in the chain, deserves a mention. When RESONANCE is brought to ...