A Hotspot Becomes A Handheld
https://hackaday.com/2026/09/19/a-hotspot-becomes-a-handheld/

A Linux handheld computer is, in theory, easy and inexpensive given the availability of single-board computers, but in practice the budget invariably edges well into three figures. There’s an interesting …read more (https://hackaday.com/2026/09/19/a-hotspot-becomes-a-handheld/)

Laser Your Way into Debug Mode on the RP2350
https://hackaday.com/2026/09/19/laser-your-way-into-debug-mode-on-the-rp2350/

The RP2350 is actually a pretty secure chip, all things considered. It has secure boot, ARMv8’s TrustZone to split secure and non-secure execution, and you can permanently disable debug — …read more (https://hackaday.com/2026/09/19/laser-your-way-into-debug-mode-on-the-rp2350/)

Teardown and Repair of a Insoma Water Timer
https://hackaday.com/2026/09/19/teardown-and-repair-of-a-insoma-water-timer/

Water timers are nifty devices that can water the lawn at set times or keep that vegetable garden from turning into a dustbowl. When [electronupdate] timer refused to output water …read more (https://hackaday.com/2026/09/19/teardown-and-repair-of-a-insoma-water-timer/)

No GPU, No Problem: Flagship LLMs on a GPU-less Teenaged Server
https://hackaday.com/2026/09/20/no-gpu-no-problem-flagship-llms-on-a-gpu-less-teenaged-server/

There are lots of reasons to run LLMs locally, from privacy concerns to just wanting to futz about with the technology, but if you want to run the big models, …read more (https://hackaday.com/2026/09/20/no-gpu-no-problem-flagship-llms-on-a-gpu-less-teenaged-server/)

A Bandpass Filter Pulls In The Signals
https://hackaday.com/2026/09/20/a-bandpass-filter-pulls-in-the-signals/

It’s an unfortunate side effect of proximity to a large transmitter that the received signal can overload a receiver’s front end even when tuned to other frequencies. [Rfrht]’s had this …read more (https://hackaday.com/2026/09/20/a-bandpass-filter-pulls-in-the-signals/)

Reverse Engineering A Sony Car Stereo LCD
https://hackaday.com/2026/09/20/reverse-engineering-a-sony-car-stereo-lcd/

For his own reasons, [Jose Luis Monteiro] (aka [emsyscode]) decided he needed to drive the LCD on a Sony CDX-A250 car stereo’s front panel using an Arduino. There’s probably a …read more (https://hackaday.com/2026/09/20/reverse-engineering-a-sony-car-stereo-lcd/)

World War I Coded Message Appears Cracked, Finally
https://hackaday.com/2026/09/20/world-war-i-coded-message-appears-cracked-finally/