The Questionable Benefits of Paying More for Air Quality Monitors
https://hackaday.com/2023/09/28/the-questionable-benefits-of-paying-more-for-air-quality-monitors/

Does paying more for air quality monitors (AQMs) make sense? This was the question which [Achim Haug] at the Air Gradient project sought to answer, with the answer being a …read more (https://hackaday.com/2023/09/28/the-questionable-benefits-of-paying-more-for-air-quality-monitors/)

A Raspberry Pi 5 is Better Than Two Pi 4s
https://hackaday.com/2023/09/28/a-raspberry-pi-5-is-better-than-two-pi-4s/

What’s as fast as two Raspberry Pi 4s? The brand-new Raspberry Pi 5, that’s what. And for only a $5 upcharge (with an asterisk), it’s going to the new go-to …read more (https://hackaday.com/2023/09/28/a-raspberry-pi-5-is-better-than-two-pi-4s/)

Hackaday Prize 2023: This Differential Scope Probe Is Smarter Than It Looks
https://hackaday.com/2023/09/28/hackaday-prize-2023-this-differential-scope-probe-is-smarter-than-it-looks/

A differential probe, a device for measuring the voltage between two points in a circuit rather than the voltage between a point and ground, it an extremely useful addition to …read more (https://hackaday.com/2023/09/28/hackaday-prize-2023-this-differential-scope-probe-is-smarter-than-it-looks/)

Building a Woodworking Lathe From Scratch
https://hackaday.com/2023/09/28/building-a-woodworking-lathe-from-scratch/

Today, cheap dodgy machine tools are more readily available than ever. Sometimes though, there’s great value in putting a simple and rugged version of your own, as demonstrated by [bartworker]’s …read more (https://hackaday.com/2023/09/28/building-a-woodworking-lathe-from-scratch/)

Simple STM32 Frequency Meter Handles Up To 30MHz With Ease
https://hackaday.com/2023/09/28/simple-stm32-frequency-meter-handles-up-to-30mhz-with-ease/

[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 …read more (https://hackaday.com/2023/09/28/simple-stm32-frequency-meter-handles-up-to-30mhz-with-ease/)

Autonomous Racing Drones Are Starting To Beat Human Pilots
https://hackaday.com/2023/09/28/autonomous-racing-drones-are-starting-to-beat-human-pilots/

Even with all the technological advancements in recent years, autonomous systems have never been able to keep up with top-level human racing drone pilots. However, it looks like that gap …read more (https://hackaday.com/2023/09/28/autonomous-racing-drones-are-starting-to-beat-human-pilots/)

Fixing a C64 With a Cheap $20 Oscilloscope
https://hackaday.com/2023/09/28/fixing-a-c64-with-a-cheap-20-oscilloscope/

Modern computers are so fast and complex that we would seldom try and fix them on a component level with simple DIY tools. Working on an early 1980s computer is …read more (https://hackaday.com/2023/09/28/fixing-a-c64-with-a-cheap-20-oscilloscope/)