You Can Build A Lego Rubik’s Cube
https://hackaday.com/2021/10/23/you-can-build-a-lego-rubiks-cube/

Rubik’s cubes are a popular puzzle — one found exciting or infuriating depending on your personal bent. [PuzzLEGO] has designed a LEGO Rubik’s cube, with the latest revision improving on …read more (https://hackaday.com/2021/10/23/you-can-build-a-lego-rubiks-cube/)

Chip Tester Knows if Your Old Chips are Working
https://hackaday.com/2021/10/23/chip-tester-knows-if-your-old-chips-are-working/

[Noel’s Retro Lab] has looked at retro chip testers before, but in a recent video you can see below he’s looking at the Chip Tester Pro, a preassembled chip tester …read more (https://hackaday.com/2021/10/23/chip-tester-knows-if-your-old-chips-are-working/)

In Search of The First Comment
https://hackaday.com/2021/10/23/in-search-of-the-first-comment/

Are you writing your code for humans or computers? I wasn’t there, but my guess is that at the dawn of computing, people thought that they were writing for the …read more (https://hackaday.com/2021/10/23/in-search-of-the-first-comment/)

An Echo Dot for the 1980s
https://hackaday.com/2021/10/23/an-echo-dot-for-the-1980s/

There’s so much obsolete technology out there with great design. It’s really sad to see it end up in the landfill, because even though the insides may be outdated, good …read more (https://hackaday.com/2021/10/23/an-echo-dot-for-the-1980s/)

ESP32-Cam Makes a Dandy Motion Detector
https://hackaday.com/2021/10/23/esp32-cam-makes-a-dandy-motion-detector/

Halloween is right around the corner and just about every Halloween project needs some kind of motion sensor. Historically, we’ve used IR and ultrasonic sensors but [Makers Mashup] decided to …read more (https://hackaday.com/2021/10/23/esp32-cam-makes-a-dandy-motion-detector/)

Automating Pool Monitoring And Chemical Dosing
https://hackaday.com/2021/10/23/automating-pool-monitoring-and-chemical-dosing/

Anyone who has had a backyard pool will know that it only takes a little lapsed attention to turn the whole thing green. For those sick of having to stay …read more (https://hackaday.com/2021/10/23/automating-pool-monitoring-and-chemical-dosing/)

Gravity-Defying Water Drop Display Shows Potential
https://hackaday.com/2021/10/23/gravity-defying-water-drop-display-shows-potential/