diy projects
Reverse Engineering a Cotton Candy Machine’s Robot Brain
A $6,400 cotton candy vending machine refused to run offline. One maker used ADB, SQLite and a patched APK to cut the cord and…
diy projects
Motion-Reactive LED Devil Horns Built on an RP2040 Prop Feather
Paper-mache horns lined with 4 mm NeoPixel strip, an RP2040 Prop-Maker Feather reading your head gestures, and two animations that answer with fire.
diy projects
This ATmega328P Clock Keeps Swatch’s Failed Internet Time Alive
Swatch's 1998 .beat time died fast, but one maker rebuilt it around an ATmega328P, a DS3231 and a 1990s HPDL-1414 bubble display.
diy projects
Raspberry Pi Book of Making 2027: A Weekend Build Queue
The Book of Making 2027 collects a year of magazine builds: origami paper circuits, a PVC-pipe underwater rover, and a first-PCB walkthrough to try.
diy projects
Louder ESP32: A $50 Multi-Room Audio Amp That Rivals Sonos
A $24 ESP32-S3 board with an onboard Class-D amp, a USB-PD trigger set to 20V, and Music Assistant add up to a networked stereo…
diy projects
Ben Eater Builds a Breadboard Clock Timed by 60 Hz Wall Power
Ben Eater skips the crystal oscillator and pulls his breadboard clock's one-second heartbeat straight from the 60 Hz AC grid. Here's how the circuit…
diy projects
Build a Wi-Fi NeoPixel Art Display with the Raspberry Pi Pico 2W
The Blossom hides a Raspberry Pi Pico 2W and a 16-pixel RGBW NeoPixel ring in a capiz shell, controlled from any browser on your…
diy projects
A Raspberry Pi Zero Cyberdeck That Fits Inside an Altoids Tin
A maker packed a Raspberry Pi Zero, a 2-inch LCD, and a hand-soldered keyboard into a mint tin. Here is how the pocket cyberdeck…
diy projects
Build a Classroom Robot with Adafruit CRICKIT and CircuitPython
One CRICKIT board turns a Circuit Playground or Feather into a motor-driving, servo-swinging robot brain, no soldering iron required. Here's how to start.
diy projects
SPOKE: The RP2040 Touch Controller That Plays Music From Fruit
The SPOKE is a CD-shaped RP2040 board with 27 capacitive touch pads that turns copper tape, pencil lines, or even fruit into a playable…
diy projects
Build a Retro Handheld Inside an NES Gamepad with an ESP32-S2
A dead NES-style controller hides a full ESP32-S2 emulator that plays 8-bit classics and Doom for about $17. Here is the weekend build.
diy projects
DOGS2: A Palm-Sized ESP32 Bench Lab You Can Build This Weekend
Sergei's DOGS2 stuffs a programmable power supply, logic probe, frequency counter, and signal generator into one palm-sized ESP32 box. Build it this weekend.