Although we generally do not look at bubbles in fluids as more than a curiosity – if not an outright annoyance – in certain contexts they can be very useful. …read more (https://hackaday.com/2026/10/20/using-ultrasound-and-microbubbles-to-make-tiny-devices/)

5 GHz Drone Video, With An ESP32
https://hackaday.com/2026/10/20/5-ghz-drone-video-with-an-esp32/

With the ESP32 series of microcontrollers having had hidden software-defined radio (SDR) facility revealed, we’re now moving on from the announcement into projects making use of the finding. [Twotoz] has …read more (https://hackaday.com/2026/10/20/5-ghz-drone-video-with-an-esp32/)

A Stereo Vision Board For Hardware Hackers
https://hackaday.com/2026/10/21/a-stereo-vision-board-for-hardware-hackers/

It’s plenty easy to do lots of vision tasks with a single camera, but using two cameras gives you lots of magical abilities, like depth perception! If you’d like to …read more (https://hackaday.com/2026/10/21/a-stereo-vision-board-for-hardware-hackers/)

Clotty The Custom Period Tracker Can, Of Course, Run DOOM
https://hackaday.com/2026/10/21/clotty-the-custom-period-tracker-can-of-course-run-doom/

[kati]’s Clotty might run DOOM and game-ify the menstrual tracking process with a playful Tamagotchi-like aspect, but don’t let that distract you. It is, at its heart, a personal menstrual …read more (https://hackaday.com/2026/10/21/clotty-the-custom-period-tracker-can-of-course-run-doom/)

The Age of Altair
https://hackaday.com/2026/10/21/the-age-of-altair/

I recently got the Amazon Christmas toy book in the mail, and it is definitely the modern version of the Sears Christmas Wish Book for last century’s youth. Or at …read more (https://hackaday.com/2026/10/21/the-age-of-altair/)