Raspberry Pi and ppLOGGER Make a Low-Cost Chemiluminescence Detector
https://hackaday.com/2022/12/31/raspberry-pi-and-pplogger-make-a-low-cost-chemiluminescence-detector/

[Laena] and her colleagues at the La Trobe Institute for Molecular Science in Melbourne, Australia used a Raspberry Pi to make a low-cost electrochemiluminescence (ECL) detector to measure inflammation markers, …read more (https://hackaday.com/2022/12/31/raspberry-pi-and-pplogger-make-a-low-cost-chemiluminescence-detector/)

NABU PC Gets CPU Upgrade, Emulates a TRS-80
https://hackaday.com/2023/01/01/nabu-pc-gets-cpu-upgrade-emulates-a-trs-80/

The NABU PC caused a bit of a buzz in the retrocomputing community a while back. After all, it doesn’t happen often that a huge batch of brand-new computers from …read more (https://hackaday.com/2023/01/01/nabu-pc-gets-cpu-upgrade-emulates-a-trs-80/)

This Fingernail Sticker Can Detect When You Stop Breathing
https://hackaday.com/2023/01/01/this-fingernail-sticker-can-detect-when-you-stop-breathing/

Sometimes we dig through the archives to see what kind of crazy hacks we can pull out of the depths of the world wide web and this one was worth …read more (https://hackaday.com/2023/01/01/this-fingernail-sticker-can-detect-when-you-stop-breathing/)

A DIY Pulse Tube Cryocooler in the Quest For Home-Made Liquid Nitrogen
https://hackaday.com/2023/01/01/a-diy-pulse-tube-cryocooler-in-the-quest-for-home-made-liquid-nitrogen/

What if you have a need for liquid nitrogen, but you do not wish to simply order it from a local supplier? In that case you can build your very …read more (https://hackaday.com/2023/01/01/a-diy-pulse-tube-cryocooler-in-the-quest-for-home-made-liquid-nitrogen/)

Use USB-C Chargers To Top Up Li-Ion Packs With This Hack
https://hackaday.com/2023/01/01/use-usb-c-chargers-to-top-up-li-ion-packs-with-this-hack/

In USB-C Power Delivery (PD) standard, the PPS (Programmable Power Supply) mode is an optional mode that lets you request a non-standard voltage from a charger, with the ability to …read more (https://hackaday.com/2023/01/01/use-usb-c-chargers-to-top-up-li-ion-packs-with-this-hack/)

LEDCard: The Pocketable Ring Light
https://hackaday.com/2023/01/01/ledcard-the-pocketable-ring-light/

How many times have you found yourself fumbling about with lighting while trying to get a clear up-close shot of an object? Although smartphones come with pretty nice cameras these …read more (https://hackaday.com/2023/01/01/ledcard-the-pocketable-ring-light/)

Electronics Explained with Mechanical Devices
https://hackaday.com/2023/01/01/electronics-explained-with-mechanical-devices/

It can be surprisingly hard to find decent analogies when you’re teaching electronics basics. The water flow analogy, for instance, is decent for explaining Ohm’s law, but it breaks down …read more (https://hackaday.com/2023/01/01/electronics-explained-with-mechanical-devices/)