raspberry pi
Raspberry Pi 5 NPU: 25 TOPS at 3 W for Vision and Small LLMs
Sixfab's AI HAT+ puts a 25 TOPS DEEPX NPU on a Raspberry Pi 5 at about 3 W. Here is what it can run,…
diy projects
UNIHIKER K10 Package Measurer: ToF Sensor Plus Scale
A UNIHIKER K10, an 8x8 ToF matrix, and an HX711 scale team up to measure a parcel's weight and size, then pull up shipping…
diy projects
Two ESP32s Talk Over Light Using Just One LED Each
SecurePair lets two ESP32 boards pair and swap encryption keys over visible light, with one LED per board doing double duty as sender and…
diy projects
H8 Mini: Build a Palm-Sized 8085 Heathkit Replica
The H8 Mini is a through-hole, 80C85-powered replica of the 1977 Heathkit H8, small enough for your palm and simple enough to solder in…
esp32 & esp8266
TNY-360 v2: An Open-Hardware ESP32-S3 Robot Dog Kit
The TNY-360 v2 quadruped uses an ESP32-S3, modular PCBs, and a 200 Hz control loop on two cores, so legged robotics is less of…
arduino
CantaStorie: Offline AI Storytelling Toy on Arduino UNO Q
CantaStorie runs YOLOX-Nano and Gemma 1B on an Arduino UNO Q to spot an object and narrate a custom story, with zero cloud and…
diy projects
DIY STM32 Scientific Calculator With a Memory LCD and CR2032 Power
An STM32L431, a 400x240 Memory LCD and two CR2032 cells make a graphing RPN calculator. See the power, keypad and PCB tricks you can…
arduino
AVR Laptop: 24 FPS Video and Sound on an 8-Bit ATmega2560
An ATmega2560 running FreeRTOS plays 24 fps video with sound on a 128x64 LCD. See how one maker squeezed a laptop out of an…
arduino
Webcam Depth Camera: 20 FPS AI Depth Sensing on Arduino VENTUNO Q
A cheap USB webcam and Depth Anything V2 on the Arduino VENTUNO Q NPU make a 20 FPS depth sensor with heatmap, slicer, flood,…
microcontrollers
SPIDriver Quattro: A USB SPI Debugger With a Built-In Screen
Debugging SPI blind is painful. The SPIDriver Quattro adds a live display, 0.1 mA current sensing, and quad-SPI support so you can see what…
esp32 & esp8266
LocalDot: Give an Echo Dot a Local Home Assistant Brain
AAElectronics' LocalDot swaps an Echo Dot's mainboard for an ESP32-P4 and ESP32-S3 that talk only to Home Assistant. Here's how it works and how…
diy projects
200 A Boost Converter: Six-Phase 12 V to 48 V DIY Build
Nick Electronics built a six-phase 200 A boost converter that turns 12 V into 48 V, using aluminum-core PCBs, copper bus bars, and an…