diy projects
Raspberry Pi Pico Revives a Discontinued Heathkit Packet Radio Modem
A maker resurrected a discontinued 1980s Heathkit packet radio modem by making a $4 Raspberry Pi Pico run the exact original firmware itself.
diy projects
30 ATtiny412 Chips Recreate a 1928 Bicycle-Chain Number Sieve
Maker KB Sriram rebuilt a 1928 mechanical number sieve using 30 ATtiny412 chips and an RP2040, and the century-old math still checks out perfectly.
diy projects
Three Kids Built a Raspberry Pi 3 Underwater Camera for £130
Three kids sealed a Raspberry Pi 3 and a DS18B20 sensor in a £130 acrylic tube to log river temperature and video on their…
arduino
Arduino UNO Q Robot Talks, Dances, and Reads Your Hand Gestures
A maker built Nuvi, a talking, dancing Shiba Inu desk robot powered by an Arduino UNO Q that splits AI processing from real-time servo…
microcontrollers
CircuitPython 11.0.0-alpha.1 Adds RP2350 Sleep Alarms
CircuitPython 11.0.0-alpha.1 adds RP2350 deep-sleep alarms, wake-on-pin support, and faster USB. Here's what changed and how to flash it this weekend.
esp32 & esp8266
Off-Grid LoRa Message Board Pairs ESP32-S3 with E-Ink Display
A battery-powered desk display that receives text messages over a LoRa mesh network with no WiFi needed, plus a built-in CO2 and humidity sensor.
news & releases
Raspberry Pi Official Annual 2027: A Year of Pi Builds in One Book
A year of Raspberry Pi projects in one book: home automation, a robot arm hack, Pi 500+ upgrades, and updated OS guides. Here's your…
diy projects
Raspberry Pi Zero 2 W PICO-8 Handheld With a Square 720×720 Screen
A Pi Zero 2 W, an 18650 cell and a square 720x720 screen turn PICO-8 into a pocket console. Here's how UncleStem built it…
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
Self-Driving 1/48 Scale Train Runs on a Supercap and IR Sensors
A 1/48 scale locomotive packs a supercapacitor, boost converter, and IR receiver so it can stop, wait, and reverse on its own. Here's how…
diy projects
Nipkow Drum 3D Display: 1884 TV Tech Meets Fast LED Matrix Panels
A spinning drum with a spiral of holes plus 22,500 fps LED panels gives glasses-free 3D. Here's how James Brown's Nipkow display works and…
diy projects
Pocket Linux Messenger Built From a $20 MF800 4G Hotspot
A $20 MF800 hotspot, a thumb keyboard, and a Sharp Memory Display become a pocket Linux messenger with 4G. Here's the parts list and…