ESP32

AI that writes code is old news. This is what it does for me once that code has to drive real electronics: firmware, testing over USB, parts and schematics, measurements and old hardware, and where it …

How the wireless launch controller works inside: the functional design, firmware architecture, the full list of safety measures, the encrypted radio protocol, sensing and how it was tested.

A two-unit wireless rocket launch controller for VRO, built on ESP32-S3s with an encrypted radio link, and the case for why done properly it is safer than a long firing cable.

A Fri3d Camp 2026 badge app that tells you when your friends are nearby over Bluetooth, swaps contact details with a button press and is set up from a phone. It also has a camp-wide game of Gotcha.

How I went from an idea to a published Fri3d Camp 2026 badge app in an afternoon with AI-assisted coding, step by step, so you can do the same.

A complete ESPHome configuration for the Fri3d Camp 2024 badge, so it shows up in Home Assistant with its motion sensor, LEDs, display and battery. Covers the driver choices that were needed.

A hands-on guide to writing your own apps for the Fri3d Camp 2024 badge with Claude Code: backing it up, the firmware model, MicroPython and a real app with the fri3d framework.

Predicting where a weather balloon’s radiosonde will land from its own radio telemetry alone, testing it on a real flight, and backtesting it against years of launches from Uccle.

An ESP32-C3 that controls a RunCam Thumb over its serial protocol: start recording the moment power arrives, and check and control the camera from a web page on its own Wi-Fi access point.

Turning an ESP32 Cheap Yellow Display into a desk panel with ESPHome that shows the house’s power use and opens the door or garage with a tap. Four gotchas along the way.

Building a TiltBox, a small wooden game console with an 8x8 LED matrix that you play by tilting it. ESP32-C3, an ADXL345 accelerometer, a home-made front panel and a few contributions back to the …