[Ryan Walker] may have written up his observations a few years ago, but the lessons are just as relevant today as they were back then. He shares five easy ways …read more (https://hackaday.com/2026/09/26/easy-ways-sink-a-hardware-startup/)

You Can Make a Microprocessor That’s All Your Own
https://hackaday.com/2026/09/26/you-can-make-a-microprocessor-thats-all-your-own/

For a while now we’ve followed the slow progression of affordable integrated circuit fabrication, and through the likes of Tiny Tapeout we’ve seen impressive strides made. But they’re not the …read more (https://hackaday.com/2026/09/26/you-can-make-a-microprocessor-thats-all-your-own/)

The Least Annoying of All Evils
https://hackaday.com/2026/09/26/the-least-annoying-of-all-evils/

If you missed the hubbub this week, it was discovered that the Raspberry Pi Foundation added code in the firmware that locks the boot process up if non-original RAM chips …read more (https://hackaday.com/2026/09/26/the-least-annoying-of-all-evils/)

A Pocket-Sized Digital Fish Tank
https://hackaday.com/2026/09/26/a-pocket-sized-digital-fish-tank/

The problem with trying to make a fish tank fit in your pocket is that you’ll either end up with water everywhere or a bunch of dead fish. Perhaps that’s …read more (https://hackaday.com/2026/09/26/a-pocket-sized-digital-fish-tank/)

Self-Repairing Conductive Material from Liquid Metal
https://hackaday.com/2026/09/26/self-repairing-conductive-material-from-liquid-metal/

PCB circuits are cool, but you know what is cooler? Terminator circuits that’s what! And what if the same material that makes Terminator circuits could also be used for smart …read more (https://hackaday.com/2026/09/26/self-repairing-conductive-material-from-liquid-metal/)

Cheap Yellow Display Dreams of PDA
https://hackaday.com/2026/09/26/cheap-yellow-display-dreams-of-pda/

Everybody loves the Cheap Yellow Display (CYD) ESP32 dev boards, so why not treat yours to a little PDA? That’s right: turn it into a Portable Digital Assistant and relive …read more (https://hackaday.com/2026/09/26/cheap-yellow-display-dreams-of-pda/)

A Modular Macro Keypad
https://hackaday.com/2026/09/26/a-modular-macro-keypad/

The introduction of the ATmega32U4 microcontroller, with its integrated USB controller, made a lot of hardware tasks much simpler than they were before. One of the arenas it revolutionized was …read more (https://hackaday.com/2026/09/26/a-modular-macro-keypad/)

Basically, Galvanizing Metal Without Acid
https://hackaday.com/2026/09/26/basically-galvanizing-metal-without-acid/