esp32 & esp8266
ESP-FLUTTER: A 70 g ESP32-C3 Butterfly Robot That Flies
A 70 g ornithopter with two servos, 50 wing LEDs, and a XIAO ESP32C3 brain flaps its way into the air. See how it…
diy projects
Digital Candle: ESP32-S3 and a 3,545-Parameter AI Flame
A tiny neural network on an ESP32-S3 paints a never-repeating flame across 144 amber LEDs. See how it works and how to try a…
esp32 & esp8266
DIY Lockpicking Robot Uses ESP32-C3, Load Cells and Claude AI
An ESP32-C3, two load cells, and an AI model team up to feel and open pin tumbler locks. Here is the sense-decide-act loop worth…
diy projects
Jet Studio: Godot-Style Game Editor for ESP32 and STM32 Boards
Jet Studio turns Godot into a game editor for the Arduino Nano ESP32 and STM32F746, hitting 62 FPS on an ILI9341 SPI display. Here…
news & releases
Insect-Inspired Flying Robot Survives Swats and 11,000x Loads
A 185 mg polymer flapper from UCLA and UC Davis lifts three times its weight and keeps flying after a flyswatter hit. Here is…
diy projects
DIY Handheld Spectrometer Uses a TCD1304 CCD and STM32
An STM32 board, a TCD1304 linear CCD and a 4-inch SPI display turn a diffraction grating into a battery-powered pocket spectrometer you can carry.
diy projects
Hidden Lockbox Opens Only to a Secret Magnet Gesture
No keyhole, no keypad: a Teensy 4.1 and an 8x8 Hall-sensor grid unlock this wooden box only when you trace the right magnetic gesture.
diy projects
Raspberry Pi Satellite Ground Station Built on an 8-Foot Dish
A salvaged 8-foot dish, a wheelchair motor, a Raspberry Pi and an RTL-SDR become a satellite ground station. See how the pointing and decoding…
diy projects
Sylphide OS Turns Cheap Microcontrollers Into Retro Desktop PCs
Sylphide OS gives ESP32-P4 and Pico 2 boards a windowed desktop with a mouse, built on FreeRTOS. Here's what runs today and what to…
diy projects
Weekend Build: An Intel 8048 Conference Badge from 1976
An Intel 8048 from 1976, an EEPROM and two vintage LED displays make a conference badge you can wire up in a weekend. Parts,…
diy projects
OuijaCNC: A Self-Playing Ouija Board on Raspberry Pi and ESP32
A core XY gantry, a magnet and a spare Pi 3B+ make a Ouija board that spells messages alone. Here is how it works…
diy projects
TWEACMAN: A Pocket WAV Player With Tape-Style Scrubbing Knobs
Two dual-pot knobs and a Renesas RA6M5 board turn WAV playback into tape-style scrubbing, from 0.001x to 1000x. Here's how the trick works.