DIY scanning spectrometer is a bright idea
https://hackaday.com/2025/04/14/diy-scanning-spectrometer-is-a-bright-idea/

Gary Boyd’s scanning spectrometer
" data-medium-file="https://hackaday.com/wp-content/uploads/2025/04/pict-ver-2.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/04/pict-ver-2.png?w=800">Spectroscopy seems simple: split a beam of light into its constituent wavelengths with a prism or diffraction grating, and measure the intensity of each wavelength. The devil is in the …read more (https://hackaday.com/2025/04/14/diy-scanning-spectrometer-is-a-bright-idea/)

Jenny’s (Not Quite) Daily Drivers: Raspberry Pi 1
https://hackaday.com/2025/04/14/jennys-not-quite-daily-drivers-raspberry-pi-1/

An occasional series of mine on these pages has been Daily Drivers, in which I try out operating systems from the point of view of using them for my everyday …read more (https://hackaday.com/2025/04/14/jennys-not-quite-daily-drivers-raspberry-pi-1/)

A Cheap Yellow Display Makes A Video Walkie Talkie
https://hackaday.com/2025/04/14/a-cheap-yellow-display-makes-a-video-walkie-talkie/

The ESP32 series of microprocessors with their cheap high-power cores and built-in wireless networking have brought us a wide variety of impressive projects over the years. We’re not sure we’ve …read more (https://hackaday.com/2025/04/14/a-cheap-yellow-display-makes-a-video-walkie-talkie/)

Linux Fu: Stopping a Runaway
https://hackaday.com/2025/04/14/linux-fu-stopping-a-runaway/

The best kind of Hackaday posts are the ones where there was some insurmountable problem with an elegant solution devised through deep analysis of the problem and creativity. This is …read more (https://hackaday.com/2025/04/14/linux-fu-stopping-a-runaway/)

Converting the C64 Mini Into A C64C
https://hackaday.com/2025/04/14/converting-the-c64-mini-into-a-c64c/

The C64 Mini is a beautiful and functional replica of the most popular computer ever made, except at 50% size and without a working keyboard. For maximum nostalgia, it was …read more (https://hackaday.com/2025/04/14/converting-the-c64-mini-into-a-c64c/)

ESP32-Powered Clock Brings Aviation Style To Your Desk
https://hackaday.com/2025/04/14/esp32-powered-clock-brings-aviation-style-to-your-desk/

There’s something cool about the visual design language used in the aviation world. You probably don’t get much exposure to it if you’re not regularly flying a plane, but there …read more (https://hackaday.com/2025/04/14/esp32-powered-clock-brings-aviation-style-to-your-desk/)

Elastic Bands Enable Touchable Volumetric Display
https://hackaday.com/2025/04/14/elastic-bands-enable-touchable-volumetric-display/