microcontrollers
Add a CircuitPython Watchdog So Your Build Reboots Itself
A frozen microcontroller mid-demo is fixable in ten lines. The CircuitPython watchdog module lets your board detect its own hang and reset itself.
diy projects
Build a Digital Nose: an SGP30 Sensor That Sniffs Out Spoiled Milk
Your nose gives a yes-or-no answer. An SGP30 gas sensor gives you a number you can plot, and the whole freshness checker is a…
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
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
Voicebox FX: A Pocket Audio Looper on the Feather RP2350
Adafruit's Voicebox FX records 20-second clips and warps them live with pitch, reverb and delay, all running CircuitPython on a Feather RP2350.
microcontrollers
CircuitPython 10.3.0 Alpha 4 Brings Audio Effects to RP2040
CircuitPython 10.3.0-alpha.4 adds new audio effects to RP2040 and RP2350 boards, three settings.toml keys, and an SPI baudrate change worth knowing.
diy projects
Build a Live Flight Tracker on the Feather RP2350 This Weekend
Turn a Feather RP2350 and a 3.5-inch TFT into a desktop flight tracker that spots planes on 1090 MHz and even flags lunar transits…
diy projects
Weekend Build: A Moon-Transit Flight Tracker on Feather RP2350
A desktop flight tracker on the Feather RP2350 that flags the exact second an aircraft crosses the Moon. A two-board weekend electronics build.
diy projects
Raspberry Pi Pico Turns a Koi-Pond Guitar Into a MIDI Controller
Monique Evette's Koi-Tar pairs a Raspberry Pi Pico with capacitive lily-pad touch sensors to turn a resin sculpture into a runway-ready MIDI instrument.
microcontrollers
CircuitPython 10.3.0 Alpha 3 Adds USB Audio to Your Boards
CircuitPython 10.3.0-alpha.3 turns ESP32 and RP2350 boards into USB mics and speakers, adds a resampler, and lands an I2S input stream worth testing.
3d printing
Build Your Own Bop It Clone with the Feather RP2040 PropMaker
A maker rebuilt the frantic 90s Bop It as a handheld reaction game on the Feather RP2040 PropMaker, with five sensors, NeoPixels and a…