Hackaday

4-bit Relay Logic Counter Begs To Have Its Buttons Pushed

What’s one to do with some nice little relays of questionable pinout, and prototyping board? How about a quietly clicky 4-bit ...
CNX Software

Convert old IR remote controls into presentation clickers using an RP2040 USB board and open-source TTVKTR firmware

TTVKTR open-source firmware converts old IR remote controls into presentation clickers through Raspberry Pi RP2040 USB boards ...
MotorTrend on MSN

You Can Leave the 2027 Audi Q9’s High Beams On and No One Will Flash You

We finally get the adaptive matrix headlights Europe has had for years.
Hackaday

Make Your Ceiling Disappear With ADS-B And Short-Throw Projector

If you’re into airplanes, you’ve probably had the experience of hearing an unusual aircraft and rushing outside to try and catch a glimpse of it, all while fumbling with a smartphone ...
IEEE

An Efficient Reduced Power Processing Single-Phase LED Driver Using Unidirectional PFC Converter

Abstract: Recent advancements in LED technology have led to the popularity of reduced-power processing schemes owing to their ability to improve conversion efficiency. When LEDs are connected to the ...