Curiosities and Inspiration

Starlink and stealth aircraft: what passive radar can and can’t do
They say Starlink has ended the era of stealth aircraft. I explain how passive radar works, why stealth isn’t enough against it, and why this still isn’t the end of…

Native Linux on ESP32-S3 – No Emulation, Directly with 9.7″ E-Paper
Linux 6.11 runs directly on the Xtensa core of the ESP32-S3 without emulation. After login, the shell mirrors to the 9.7″ ED097TC2 e-paper display.

A tinkerer set up an AI assistant at home and ordered pizza through it.
When people hear “home AI assistant,” most picture either a smart speaker that answers a weather query with an ad, or a sci-fi home where the fridge negotiates with the…

Network of DIY weather stations measures smoke from Belgium’s largest fire in history
A fire in Belgium’s Hautes Fagnes reserve burned 1,600 hectares, the largest in the country’s history. Amateur sensors in the sensor.community network showed that smoke traveled over 150 km to…

Reviving Old Unsupported Devices with AI – AVerMedia Game Capture HD II
The old AVerMedia Game Capture HD II refused to do the one thing I asked – record 640×480 from the picogame engine. Inside it runs a small Linux, and the…

ESP32 Plane Radar: Aircraft radar on your desk for a few hundred crowns
If you’ve ever wondered what plane is flying over your house, you’ve probably used an app like FlightRadar24. The ESP32 Plane Radar project offers a more interesting solution though –…

Amateur air quality sensors in Moscow detected extreme particulate concentrations from a drone attack on the refinery.
During a large-scale drone attack on Moscow on the night of June 18, 2026, a fire struck an oil refinery in the southeastern part of the city. Amateur sensors connected…

Improved web-based Serial Monitor with Plotter. Free, no installation required, online.
Anyone who’s ever programmed an Arduino or ESP32 knows the ritual: upload the code, open Serial Monitor in the Arduino IDE, and watch the stream of numbers to check if…

Prusa 3D and ColorMix color combining now free to try
Imagine having a printer at home with four or five filaments. Until now, you could only print models in those exact four or five colors—and nothing more. Prusa ColorMix removes…

The DIY enthusiast assembled two 3D printers together. It works.
Shintaro Kono had two MK3S 3D printers at home. He could have bought an upgrade kit to upgrade to CoreOne, but he (probably) said NO! I’ll combine them to have…