diy projects
This NFC Business Card Lights Its LEDs With Borrowed Phone Power
Kevin Tang's PCB business card lights up with no battery on board, pulling about 5 mA from the phone's own 13.56 MHz NFC field.
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…
diy projects
Seeed’s reComputer RK3576 Kit Runs YOLO11 at 80 FPS for $219
Seeed's new RK3576 dev kit packs a 6 TOPS NPU, a Pi-compatible 40-pin header and an optional 20 TOPS accelerator. Here's whether your build…
arduino
Arduino VENTUNO Q Runs a Vision Model on a Robot Arm
A $299 Arduino VENTUNO Q runs a vision-language-action model on-board, teaching an SO-101 robot arm to pick and place from just 50 demonstrations.
microcontrollers
Someone Squeezed a Generative AI Image Model Onto a $1 RP2350
Five seconds, 520 KB of RAM and about a dollar of silicon: the RP2350 inside the Raspberry Pi Pico 2 is now generating 128x128…
arduino
Arduino’s Zephyr RTOS Core Hits 1.0.0: What Changes for Makers
Arm killed MbedOS, so Arduino rebuilt on Zephyr. The 1.0.0 core adds Nicla Vision camera support, Zephyr 4.4.1, and VENTUNO Q silicon.
arduino
This Arduino Watches a Treadmill With a Webcam to Clock Speed
A rented treadmill, a USB webcam, and an Arduino VENTUNO Q: an on-board neural net reads belt speed and broadcasts it over Bluetooth as…
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.
raspberry pi
Raspberry Pi Bootloader Now Draws Splash Screens on SPI Panels
Cyberdecks and Pi handhelds boot to a black screen for seconds. A new firmware extension paints your SPI or I2C panel straight from the…
esp32 & esp8266
Petoi’s Quaddle Is a Foldable ESP32-S3 Quadruped Robot for $99
Petoi packed omnidirectional walking into four servos and an ESP32-S3, then made the legs fold flat. Here is what the $99 Quaddle can actually…
raspberry pi
Turn Two Knobs Into a Raspberry Pi Internet Radio With MCP3008
Two potentiometers, an MCP3008 ADC and a Raspberry Pi become a knob-tuned internet radio. Here is the SPI wiring and the GPIO Zero code…
esp32 & esp8266
Build a $10 ESP32-C3 Fridge Monitor That Logs Its Own Data
A $10 XIAO ESP32C3 and a DHT22 keep 30 minutes of fridge temperature history on-device, cutting network traffic by 92 percent. A tidy weekend…