arduino
Never Buy the Same L298N Twice: An Arduino UNO Q Parts Tracker
A maker got tired of owning eight identical motor drivers, so he built an Arduino UNO Q inventory tracker that answers one question: do…
diy projects
A Parody Apple Laptop Reborn: The RP2350 Mactini Actually Works
A 20-year-old Apple parody became real hardware: an RP2350 running FreeRTOS, DMA-driven graphics and an alphabet you tap out on one capacitive pad.
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
A XIAO ESP32-S3 Clock Hiding Inside a Fake Linksys WRT Router
Glen Akins rebuilt the mid-2000s Linksys WRT router as an NTP desk clock, swapping a Raspberry Pi Zero 2 W for a 21 mm…
news & releases
Microduck: A $399 Open-Source Biped Robot for Physical AI Labs
A 25 cm biped with 15 degrees of freedom, an 8x8 ToF LiDAR and a $399 preorder price. Here is what Microduck offers student…
diy projects
TinyML on a Raspberry Pi 3: LesionIQ Scans Skin Lesions Offline
A PhD student in Edinburgh fit a skin-lesion classifier onto a Raspberry Pi 3 with no internet at all. Here is how that constraint…
diy projects
How ExpressLRS Squeezes Kilometers Out of a 1-Watt ESP32 Link
Four open-source ELRS receivers, an SX1280 LoRa radio, and one 50-ohm trace: the RF design tricks that keep a 1-watt link locked kilometers out.
esp32 & esp8266
An ESP32-P4 Runs Doom While Claude Sonnet Fumbles the Controls
A 51-ray depth scan, an ASCII automap, and a WebSocket that freezes the game between moves. That is everything Claude Sonnet gets to survive…
raspberry pi
LiteRT on Raspberry Pi 5: Run Gemma and Vision Models Locally
Google's LiteRT CLI puts Gemma and EfficientNet on a Raspberry Pi 5 with three commands. Here is the setup, the file sizes, and the…
news & releases
NVIDIA Jetson Orin Nano 2 Packs 78 TOPS Into a 15-Watt Board
Double the inference of the Orin Nano Super at 78 TOPS, plus 40 percent less power in 15-watt mode. What NVIDIA's new Jetson means…
diy projects
DIY PLC on a PocketBeagle 2: Is a $1,000 Allen-Bradley Fair?
A $1,000 PLC versus a $10 dev board: element14's Clem Mayer built his own on a PocketBeagle 2 to find out exactly where the…
arduino
Arduino VENTUNO Q: 8-Core Dragonwing SBC With an STM32 Sidekick
Arduino's VENTUNO Q pairs an 8-core Dragonwing with an STM32, 16GB of LPDDR5 and a 40 TOPS DSP for $299. Here's what to have…