diy projects
Two ESP32s Talk Over Light Using Just One LED Each
SecurePair lets two ESP32 boards pair and swap encryption keys over visible light, with one LED per board doing double duty as sender and…
diy projects
CircuitPython POV Bike Wheel: Floating Images on 6 LED Strips
Six DotStar strips, a Feather RP2040, and a magnet sensor make a bike wheel draw images in mid-air. See how the timing trick works…
raspberry pi
Raspberry Pi 5 and ESP32-S3 Power an Offline AI Steampunk Helmet
A Pi 5 runs a local LLM and video stream while an ESP32-S3 moves a servo eye. See how this offline wearable splits the…
diy projects
This LED Staff Turns a Teensy 4.1 Into a Handheld PoV Display
A Teensy 4.1, a strip of addressable LEDs and an IMU turn a hand-spun staff into a persistence-of-vision display. Here is how to build…
diy projects
Build a Spinning Mechanical TV with a Raspberry Pi Pico
A Raspberry Pi Pico, an A4988 stepper driver, and five LEDs turn a spinning pin-holed disk into a real 20-row video display. Here is…
diy projects
Build a Palm-Sized POV TV with a Raspberry Pi Pico
A Raspberry Pi Pico, a stepper motor, and a spinning disk of holes turn five LEDs into a pocket-sized color TV you can build…