Laser Projector Built from an Old Hard Drive
https://hackaday.com/2023/05/12/laser-projector-built-from-an-old-hard-drive/

Spinning hard drives are being phased out of most consumer-grade computers in favor of faster technology like solid-state drives and their various interfaces. But there’s still millions of them in …read more (https://hackaday.com/2023/05/12/laser-projector-built-from-an-old-hard-drive/)

Tricorder Tutorial isn’t Just for Starfleet Cadets
https://hackaday.com/2023/05/12/tricorder-tutorial-isnt-just-for-starfleet-cadets/

For many of us, the most difficult aspect of a project comes when it’s time to document the thing. Did you take enough pictures? Did you remember all the little …read more (https://hackaday.com/2023/05/12/tricorder-tutorial-isnt-just-for-starfleet-cadets/)

This Week in Security: TPM and BootGuard, Drones, and Coverups
https://hackaday.com/2023/05/12/this-week-in-security-tpm-and-bootguard-drones-and-coverups/

Full disk encryption is the go-to solution for hardening a laptop against the worst-case scenario of physical access. One way that encryption can be managed is through a Trusted Platform …read more (https://hackaday.com/2023/05/12/this-week-in-security-tpm-and-bootguard-drones-and-coverups/)

Op-Amp Challenge: Interactive Analog LED Wave Array
https://hackaday.com/2023/05/12/op-amp-challenge-interactive-analog-led-wave-array/

https://www.youtube.com/watch?v=21_mKkDrlQw
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2023/05/Interactive-analog-LED-wave-array-featured.gif?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/05/Interactive-analog-LED-wave-array-featured.gif?w=800">A while back, [Chris Lu] was studying how analog circuits, specifically op-amps can be used to perform mathematical operations and wondered if they could be persuaded to solve differential equations, …read more (https://hackaday.com/2023/05/12/op-amp-challenge-interactive-analog-led-wave-array/)

Hackaday Podcast 218: Open Source AI, The Rescue of Salyut 7, The Homework Machine
https://hackaday.com/2023/05/12/hackaday-podcast-218-open-source-ai-the-rescue-of-salyut-7-the-homework-machine/

This week, Editor-in-Chief Elliot Williams and Kristina Panos have much in the way of Hackaday news — the Op Amp Challenge is about halfway over, and there are roughly three …read more (https://hackaday.com/2023/05/12/hackaday-podcast-218-open-source-ai-the-rescue-of-salyut-7-the-homework-machine/)

What Is A Schumann Resonance And Why Am I Being Offered A 7.83Hz Oscillator?
https://hackaday.com/2023/05/12/what-is-a-schumann-resonance-and-why-am-i-being-offered-a-7-83hz-oscillator/

Something that probably unites many Hackaday readers is an idle pursuit of browsing AliExpress for new pieces of tech. Perhaps it’s something akin to social media doomscrolling without the induced …read more (https://hackaday.com/2023/05/12/what-is-a-schumann-resonance-and-why-am-i-being-offered-a-7-83hz-oscillator/)

Hackaday Prize 2023: Finger Tracking Via Muscle Sensors
https://hackaday.com/2023/05/12/hackaday-prize-2023-finger-tracking-via-muscle-sensors/