When light reflects off a surface, not all of it reflects off at the same wavelength; some photons impart a portion of their ...

What do you get when you take 8,192 CH570 MCUs, put them on custom PCBs, and write firmware for this interconnected gaggle of cores? In the case of [bitluni]’s project, you get something that’s ...

Unlike almost every other kind of microscope, atomic-force microscopes (AFMs) don’t use any kind of optical beam to image ...

Generally, LiFePO4 (LFP) batteries are quite safe and stable, but it’s still possible for something to go wrong, even ...

BillPg] has been designing a fantasy 1980s-era home computer. As part of the exercise, he’s reevaluating all the assumptions that have grown organically over time in the small computer ...

In theory, MIDI is an electrical and protocol standard that allows any such equipped instrument or computer to talk to any ...

Happy belated July 4th to all the readers from the United States — hopefully you aren’t reading this from a hospital bed ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

Once upon a time, there was a bit of a fad for fingerprint authentication in laptops and desktop computers. It has long since ...

YouTube streaming typically involves a camera with an HDMI output, a USB3 HDMI digitiser, and a suitably beefy PC to run it all. It’s quite a process, and for [Coreymillia], more complex than it needs ...

For as good as solar panels are at converting sunlight directly into usable electricity, especially for how cheap they’re ...

It’s not every day that there’s a new OS in the works for 386 and 486-era hardware, but [John Swiderski] let us know he ...