Many Hackaday readers will be familiar with the term “core memory”, likely thanks to its close association with the Apollo Guidance Computer. But knowing that the technology existed at one …read more (https://hackaday.com/2023/05/18/supercon-2022-andy-geppert-is-bringing-core-memory-back/)

Big Tactile Button Is Silly But Cool
https://hackaday.com/2023/05/18/big-tactile-button-is-silly-but-cool/

Every hacker is familiar with those teeny little tactile buttons that are so enjoyable to click over and over again. [ROBO HUB] has built a giant version as a tribute, …read more (https://hackaday.com/2023/05/18/big-tactile-button-is-silly-but-cool/)

Toothbrush Speed Controller Secrets Revealed
https://hackaday.com/2023/05/18/toothbrush-speed-controller-secrets-revealed/

Typically, when we want to build something with a DC motor, we might grab a bunch of AAs, or a single lithium cell at the very least. Electric toothbrushes often …read more (https://hackaday.com/2023/05/18/toothbrush-speed-controller-secrets-revealed/)

LTE Sniffer Ferrets Out Cellular Communications
https://hackaday.com/2023/05/18/lte-sniffer-ferrets-out-cellular-communications/

LTE networks have taken over from older technologies like GSM in much of the world. Outfitted with the right hardware, like a software defined radio, and the right software, it’s …read more (https://hackaday.com/2023/05/18/lte-sniffer-ferrets-out-cellular-communications/)

An Entire RISC-V Operating System in 2000 Lines
https://hackaday.com/2023/05/18/an-entire-risc-v-operating-system-in-2000-lines/

While Microsoft and Apple don’t release the source code for their operating systems, a good estimate is that it takes around 50 million lines of code to run these software …read more (https://hackaday.com/2023/05/18/an-entire-risc-v-operating-system-in-2000-lines/)

Go In All The Directions With Omniwheeled ESP32 Bot
https://hackaday.com/2023/05/18/go-in-all-the-directions-with-omniwheeled-esp32-bot/

The ability to change direction without turning is the specialty of omnidirectional wheels, which [maker.moekoe] used to their full potential on a pair of ESP32-controlled robots. Video after the break. …read more (https://hackaday.com/2023/05/18/go-in-all-the-directions-with-omniwheeled-esp32-bot/)

North Korean Karaoke Machine Teardown
https://hackaday.com/2023/05/19/north-korean-karaoke-machine-teardown/

Photo from project blog post, by Will Scott
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2023/05/v700-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/05/v700-feature.jpg?w=800">Karaoke is a very popular pastime in Seoul — there are venues where you can sing on a stage, sing in rooms with your friends, and even sing solo in …read more (https://hackaday.com/2023/05/19/north-korean-karaoke-machine-teardown/)