Laser and Webcam Team Up for Micron-Resolution Flatness Measurements
https://hackaday.com/2023/03/16/laser-and-webcam-team-up-for-micron-resolution-flatness-measurements/

When you want to measure the length, breadth, or depth of an object, there are plenty of instruments for the job. You can start with a tape measure, move up …read more (https://hackaday.com/2023/03/16/laser-and-webcam-team-up-for-micron-resolution-flatness-measurements/)

The X Macro: A Historic Preprocessor Hack
https://hackaday.com/2023/03/16/the-x-macro-a-historic-preprocessor-hack/

If we told you that a C preprocessor hack dated back to 1968, you’d be within your rights to remind us that C didn’t exist in 1968. However, assemblers with …read more (https://hackaday.com/2023/03/16/the-x-macro-a-historic-preprocessor-hack/)

Hackaday Berlin: Final Schedule, Last Call for Tickets, and More
https://hackaday.com/2023/03/16/hackaday-berlin-final-schedule-last-call-for-tickets-and-more/

Hackaday Berlin is just about a week away, and we’ve just put the finishing touches on our preparations. And that includes a snazzy landing page, the full schedule, details on …read more (https://hackaday.com/2023/03/16/hackaday-berlin-final-schedule-last-call-for-tickets-and-more/)

Replacing a Clock IC’s Battery
https://hackaday.com/2023/03/16/replacing-a-clock-ics-battery/

You can find a lot of strange things inside IC packages. For example, the Dallas DS12885 and DS12887 real time clock “chips” were available in a large package with an …read more (https://hackaday.com/2023/03/16/replacing-a-clock-ics-battery/)

Fish Tank Dosing Pump Built Using Pi Pico
https://hackaday.com/2023/03/17/fish-tank-dosing-pump-built-using-pi-pico/

When you’re maintaining a fish tank, it’s actually quite important to get all your basic chemistry right. Mismanage things, and you’ll kill all the helpful bacteria in the tank, or …read more (https://hackaday.com/2023/03/17/fish-tank-dosing-pump-built-using-pi-pico/)

Take a Ride Through the Development of a Custom BLDC Motor Controller
https://hackaday.com/2023/03/15/take-a-ride-through-the-development-of-a-custom-bldc-motor-controller/

The folks over at the [Barkhausen Institut] are doing research into controlling autonomous fleets of RC cars and had been using off the shelf electronic speed controllers (ESCs) to control …read more (https://hackaday.com/2023/03/15/take-a-ride-through-the-development-of-a-custom-bldc-motor-controller/)

Spin Up To Speed With This Stroboscope
https://hackaday.com/2023/03/15/spin-up-to-speed-with-this-stroboscope/