Noise is an annoying but unavoidable part of any engineering project. Fixing noise issues is hard enough, but even just measuring how much noise an amplifier adds to your signal …read more (https://hackaday.com/2022/04/01/using-a-vacuum-diode-to-make-the-cleanest-noise-source-youve-ever-seen/)

Making Your Own Technically-HDMI OLED Monitor
https://hackaday.com/2022/04/01/making-your-own-technically-hdmi-oled-monitor/

One day, [mitxela] got bored and decided to build his own HDMI monitor – the unconventional way. HDMI has a few high-speed differential pairs, but it also has an I2C …read more (https://hackaday.com/2022/04/01/making-your-own-technically-hdmi-oled-monitor/)

This Motorcycle Uses Water!
https://hackaday.com/2022/04/02/this-motorcycle-uses-water/

Doing the rounds among motorcycle enthusiasts for the last week has been a slightly unusual machine variously portrayed as running on water or sea water. This sounds like the stuff …read more (https://hackaday.com/2022/04/02/this-motorcycle-uses-water/)

Briefcase Computer Is A Glorious Cyberpunk Build
https://hackaday.com/2022/04/02/briefcase-computer-is-a-glorious-cyberpunk-build/

There are plenty of gaming laptops on the market these days, but none quite fit the requirements of one [ParticularlyPippin]. Thus, they set out on building their own portable computer, …read more (https://hackaday.com/2022/04/02/briefcase-computer-is-a-glorious-cyberpunk-build/)

Eyes on the Prize!
https://hackaday.com/2022/04/02/eyes-on-the-prize/

This year’s Hackaday Prize is off to a roaring start. And that’s fantastic, because this year’s challenge is a particularly important one: reducing mankind’s footprint on the earth through better …read more (https://hackaday.com/2022/04/02/eyes-on-the-prize/)

Busted 1960s Vacuum Tube Radio Sings Again
https://hackaday.com/2022/04/02/busted-1960s-vacuum-tube-radio-sings-again/

Restoring a vintage radio receiver has the potential to be a fun weekend project, but it pays to know what you’re up against. Especially in the case of vacuum tube …read more (https://hackaday.com/2022/04/02/busted-1960s-vacuum-tube-radio-sings-again/)

Razor Crest Control Lever For The Grogu In Your Life
https://hackaday.com/2022/04/02/razor-crest-control-lever-for-the-grogu-in-your-life/

If you’re looking to add a little more sci-fi authenticity to your gaming setup, you could do much worse than this functional control lever replica that [ZapWizard] has entered into …read more (https://hackaday.com/2022/04/02/razor-crest-control-lever-for-the-grogu-in-your-life/)

Monitoring Water Quality Using Lots of Sensors and Machine Learning
https://hackaday.com/2022/04/02/monitoring-water-quality-using-lots-of-sensors-and-machine-learning/