diy projects
ESP32 AI Voice Assistant With Animated OLED Eyes (Whisper + GPT)
An ESP32 records your voice, asks Whisper and GPT for an answer, and talks back while an OLED shows blinking eyes. Here's how the…
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…
diy projects
AIR PRO: Pip-Boy Air Quality Monitor on Qualia S3 + SEN66
A wooden Pip-Boy box reads CO2, PM, VOC and NOx every 2 seconds and shows one word for air quality. See how the Qualia…
diy projects
EWatch: An Open Source ESP32-S3 Smartwatch You Can Program
EWatch packs an ESP32-S3, a 1.69-inch touchscreen, and a 350 mAh battery into a hackable wrist computer. See the parts, the power tricks, and…
diy projects
Build a Square PICO-8 Handheld with a Pi Zero 2 W
A Pi Zero 2 W, a 720 x 720 square IPS screen, and a custom PCB turn PICO-8 into a real pocket console. See…
arduino
Build an 8-Bit Arduino Laptop with FreeRTOS and 8 KB of RAM
An ATmega2560 with just 8 KB of RAM runs FreeRTOS, video at 24 fps, and a UI. See the parts, the memory tricks, and…
diy projects
Animate a Halloween Skeleton with a Raspberry Pi Pico and Servos
Turn a ₱150 plastic skeleton into a spooky animatronic with a Raspberry Pi Pico, four 9g servos, and a distance sensor. Wiring and power…
esp32 & esp8266
Hide an ESP32-C3 IR Blaster Inside a Walnut for Smart Home Control
A maker hid an ESP32-C3 inside a walnut shell to beam IR commands at gear that never got a Wi-Fi upgrade. Here is how…
news & releases
DirectHop: A 1-Gram Robot That Jumps With a DC Motor
A gram-scale robot swaps its spring for a coreless DC motor, letting researchers dial the jump height with current instead of a fixed release.
iot & smart home
IronEar’s ESP32-S3 Sensor Hears 500 Sounds, Skips the Camera
An open-source ESP32-S3 sensor node classifies 500+ household sounds on-device and reports to Home Assistant over MQTT or a private LoRa mesh.
diy projects
Flip-Dot Display Turns Fluid Physics Into Sound on a Pi Pico 2 W
A maker swapped silent LEDs for a room-filling flip-dot panel that physically clacks out real fluid physics, steered by a joystick and a hidden…
microcontrollers
AiboJam Revives Sony’s Discontinued AIBO on a $40 Fruit Jam Board
Sony's discontinued AIBO comes back as a CircuitPython recreation on a $40 RP2350 board, complete with 49 motion clips and native 3D rendering.