A standard part of travel kit for the 2020s is now a battery pack — a hefty lithium-ion cell with onboard electronics for USB charging, that ensures all of our …read more (https://hackaday.com/2022/08/06/hackaday-prize-2022-diy-brushless-hand-cranked-generator/)

PixMob Wristband Protocol Reverse-Engineering Groundwork
https://hackaday.com/2022/08/06/pixmob-wristband-protocol-reverse-engineering-groundwork/

The idea behind the PixMob wristband is simple — at a concert, organizers hand these out to the concertgoers, and during the show, infrared projectors are used to transmit commands …read more (https://hackaday.com/2022/08/06/pixmob-wristband-protocol-reverse-engineering-groundwork/)

This Stainless Steel Knife Build Starts with Raw Iron Ore
https://hackaday.com/2022/08/06/this-stainless-steel-knife-build-starts-with-raw-iron-ore/

Making knives at home has become a popular hobby, thanks partly to reality TV and the free time and idle hands afforded by lockdowns. Depending on how far you get …read more (https://hackaday.com/2022/08/06/this-stainless-steel-knife-build-starts-with-raw-iron-ore/)

Compare PDFs Visually
https://hackaday.com/2022/08/06/compare-pdfs-visually/

Sometimes a problem seems hard, but the right insight can make it easy. If you were asked to write a program to compare two PDF files and show the differences, …read more (https://hackaday.com/2022/08/06/compare-pdfs-visually/)

Laptoppin’ Like 1975
https://hackaday.com/2022/08/06/laptoppin-like-1975/

When we first saw the PZ1 laptop — a 6502 laptop-style computer with a small display and 512K of RAM — we couldn’t help but think of the old AIM …read more (https://hackaday.com/2022/08/06/laptoppin-like-1975/)

MCH2022 Badge CTF Solved, With Plenty To Learn From
https://hackaday.com/2022/08/07/mch2022-badge-ctf-solved-with-plenty-to-learn-from/

Among all the things you could find at MCH2022, there were a few CTFs (Capture The Flag exercises) – in particular, every badge contained an application that you could  try …read more (https://hackaday.com/2022/08/07/mch2022-badge-ctf-solved-with-plenty-to-learn-from/)

Want Faster Extrusion but Don’t Have a Volcano? Nuts!
https://hackaday.com/2022/08/07/want-faster-extrusion-but-dont-have-a-volcano-nuts/

A lot of people want to print faster. Maybe they don’t like to wait, or they need to print a lot of things. Maybe it is just human nature to …read more (https://hackaday.com/2022/08/07/want-faster-extrusion-but-dont-have-a-volcano-nuts/)

CT Scans Help Reverse Engineer Mystery Module
https://hackaday.com/2022/08/07/ct-scans-help-reverse-engineer-mystery-module/