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/

When you think of wartime cryptography, you probably think of World War II and Enigma, although there were other famous codes used during that war. But in fact, there have …read more (https://hackaday.com/2026/09/20/world-war-i-coded-message-appears-cracked-finally/)

Ski Lift Removes Mice from Chicken Coop
https://hackaday.com/2026/09/20/ski-lift-removes-mice-from-chicken-coop/

Getting rid of rodents like squirrels, mice, or groundhogs is a lot like digging a hole on the beach. No matter how much you remove, it’ll always fill back in. …read more (https://hackaday.com/2026/09/20/ski-lift-removes-mice-from-chicken-coop/)

Reviving TEMPEST Attacks with an Injected Signal
https://hackaday.com/2026/09/20/reviving-tempest-attacks-with-an-injected-signal/

TEMPEST attacks are often the most effective way to break air-gapped security: rather than directly accessing a computer, the attacker records the system’s unintended radio emissions and uses them to …read more (https://hackaday.com/2026/09/20/reviving-tempest-attacks-with-an-injected-signal/)

Hackaday Links: September 20, 2026
https://hackaday.com/2026/09/20/hackaday-links-september-20-2026/

Some sad news to start this week off — after 52 years in business, Sherline has announced they are winding down their manufacturing operations. By the end of October they …read more (https://hackaday.com/2026/09/20/hackaday-links-september-20-2026/)

Making a Copper-Oxide Photodetector from Scratch
https://hackaday.com/2026/09/20/making-a-copper-oxide-photodetector-from-scratch/

Photodetectors come in a wide variety of constructions and materials, with the Cu2O-based photodetector that [Mad Scientist Creations] demonstrates in a recent video being a good example of a photodetector …read more (https://hackaday.com/2026/09/20/making-a-copper-oxide-photodetector-from-scratch/)

Pedal Harder for Affordability
https://hackaday.com/2026/09/21/pedal-harder-for-affordability/