microcontrollers
Seeed XIAO SAMD21 Plus and RP2040 Plus Double the GPIO Count
Seeed kept the postage-stamp footprint but pushed the XIAO SAMD21 to 30 GPIO and the RP2040 to 29, with onboard battery charging from $4.90.
microcontrollers
Olimex’s Neo6502kbd Hides a Real MOS 6502 Inside a 50-Euro Keyboard
Olimex put a genuine WDC W65C02 under a wedge-shaped keyboard, paired it with an RP2040 for video and USB, and priced the Apple II…
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
Clough42’s GPS Clock Spins Its Numbers with a Pico and TMC2208
A GPS module, a Raspberry Pi Pico, and two TMC2208 drivers spin machined wheels to show time that never needs setting. Here is how…
raspberry pi
Build a Pocket Route Finder on Raspberry Pi Pico with Dijkstra
A Pico, an SPI LCD and about 60 lines of MicroPython turn Dijkstra's 1956 algorithm into a handheld that finds the cheapest route between…
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
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
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
This Giant 16×2 Character Display Runs on an RP2040 and 1,000 LEDs
A maker rebuilt the classic 16×2 character LCD at 7x scale using 1,000+ addressable LEDs and an RP2040 that still speaks I2C to any…
microcontrollers
Luxonis M8 Box: An RP2040 That Wires Edge AI to Machines
An RP2040 runs the I/O on Luxonis' new M8 Box, letting an edge AI camera flip 16 A relays and drive a CAN bus…
esp32 & esp8266
Get Full-HD Video From a Raspberry Pi Pico or ESP32 Over USB
A new library pushes full-HD 1920x1080 video at 60Hz from a Raspberry Pi Pico or ESP32 using a $20 USB display adapter and just…
microcontrollers
ChronoWatch X2040: An RP2040 Smartwatch That Just Tells Time
An RP2040 and a Waveshare round touchscreen become a distraction-free smartwatch, coded in C on the Pico SDK with custom touch handling and swappable…