One of the extra tools someone might need when working with surface-mount components is a solder paste stencil, which not only simplifies the application of solder paste to a PCB …read more (https://hackaday.com/2026/07/23/saving-some-coin-with-3d-printed-stencils/)

Encryption in the 1790s
https://hackaday.com/2026/07/23/encryption-in-the-1790s/

For as long as humans have had writing, there’s been a need to send secret messages. It is easy to think that Enigma machines and their immediate predecessors are old …read more (https://hackaday.com/2026/07/23/encryption-in-the-1790s/)

Running DOOM on a Custom CPU Built From Scratch
https://hackaday.com/2026/07/23/running-doom-on-a-custom-cpu-built-from-scratch/

Running DOOM on weird obscure hardware is a fun hacker pastime that’s been around for a long time now. It’s always enjoyable to see someone port it to an egg timer, …read more (https://hackaday.com/2026/07/23/running-doom-on-a-custom-cpu-built-from-scratch/)

Hackaday Europe 2026: Half Quad, Half Blimp: Test. Fly. Survive.
https://hackaday.com/2026/07/23/hackaday-europe-2026-half-quad-half-blimp-test-fly-survive/

A great many drones out there, whether homebuilt or store-bought, follow the same basic format. Four motors, some kind of controller, and a lithium-polymer battery supplying the juice to keep …read more (https://hackaday.com/2026/07/23/hackaday-europe-2026-half-quad-half-blimp-test-fly-survive/)

Mic Jammer Relies on Ultrasound
https://hackaday.com/2026/07/23/mic-jammer-relies-on-ultrasound/

Today’s phone microphones are perfectly adept at picking up sound in all sorts of conditions, and they’re backed by all kinds of processing techniques to filter out noise and capture …read more (https://hackaday.com/2026/07/23/mic-jammer-relies-on-ultrasound/)

A Train Departure Board For The Home
https://hackaday.com/2026/07/23/a-train-departure-board-for-the-home/

Trains are a great way to get around. You just have to make sure you’re across the schedule if you intend to get where you’re going in a timely manner. …read more (https://hackaday.com/2026/07/23/a-train-departure-board-for-the-home/)

BASICally, Its Retro Machine Language
https://hackaday.com/2026/07/23/basically-its-retro-machine-language/

We enjoyed [Beej’s] trip down memory lane looking at a BASIC game, The Wizard’s Castle, written for the Exidy Sorcerer. It appeared in a 1980 magazine that included the title …read more (https://hackaday.com/2026/07/23/basically-its-retro-machine-language/)

Targeting Allele-Specific Faulty mRNA in SCNA2 Mutation Patients
https://hackaday.com/2026/07/23/targeting-allele-specific-faulty-mrna-in-scna2-mutation-patients/