From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

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

LG Electronics has announced its 2026 QNED evo Mini LED TV lineup, and the headline is clear. Bigger screens are the focus this year, led by a new 115-inch model aimed at people who want a cinema-like ...

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

What is 'narcissistic collapse'? Experts see familiar hallmarks in Trump’s latest rant White rice sold nationwide is being recalled for possible foreign material contamination Scientists just ...

It’s the evening before publication, and a pair of Hackaday writers convene to record the week’s podcast. This week Elliot Williams is joined by Jenny List, and it’s a bumper ...

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 ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Megan Wollerton Following a new round of testing, we have added a number of ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

Q. Is it safe to use an RF skin tightening device when you have a pacemaker/defibrillator? I was going to get one but see it is recommended to not use one around metal implants and devices. —M.M., ...