The RGB LED-based Samsung R95H delivers the widest color range I’ve ever measured, but brightness, bloom, and off-angle ...

Bluetooth is baked into just about everything these days, from wireless earbuds and fitness trackers to laptops, cars, and smart home devices. In 2025 alone, there were an estimated 5.3 billion ...

Back in 2017, Hackaday featured an audio reactive LED strip project from [Scott Lawson], that has over the years become an ...

Minimal build, maximum payoff.

There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

Bluetooth technology is widely used for various purposes such as wireless audio streaming, hands-free calling, and file sharing. Among these, Bluetooth file transfer is one of the most common uses of ...