esp32 & esp8266
ESP32-S3 Flight Controller With Pixhawk-Style Ports
The Engineer built a modular ESP32-S3 flight controller with an SPI IMU, split 3.3 V rails, and Pixhawk-style JST-GH ports for any DIY RC…
microcontrollers
STM32 Gets One Platform: What ST’s Cortex-M Shift Means
ST is unifying STM32 around Arm Cortex-M, with new STM32A parts and a 280 MHz STM32G5. Here is a weekend plan to test what…
esp32 & esp8266
Olimex UEXT-CH390 Adds Wired Ethernet to Pico and ESP32
A 4.95 EUR open source UEXT module gives Pico, Pico 2 and Wi-Fi-only ESP32 boards a wired 100 Mbit Ethernet link. Here is what…
esp32 & esp8266
ESP32-CAM Turns a Cheap Blood Pressure Monitor Smart
Tomasz Burzy gave a secondhand blood pressure monitor Wi-Fi by pointing an ESP32-CAM at its seven-segment display. No OCR, no reverse engineering.
diy projects
Recovery Kit 3: A Dual-Battery Raspberry Pi Cyberdeck
Jay Doscher's Recovery Kit 3 packs a Raspberry Pi 4, a 13.3-inch AMOLED screen, and two 99Wh batteries into a rugged case. No soldering…
arduino
Fetch: An Arduino UNO Q Robot That Plays Ball With You
Fetch pairs an Arduino UNO Q with a custom vision model to chase a ball, scoop it up, and hand it back to you.…
diy projects
Sonicare Toothbrush NFC Chip Hacked With an ESP32-S3 and PN532
A Sonicare brush head hides a battery-free NFC chip. See how an ESP32-S3 and PN532 read its wear data and turn it into a…
diy projects
SAWbot: One-Motor Amphibious Robot Swims and Crawls on Land
SAWbot swims with a single motor and a traveling-wave membrane, hits 34 cm/s, then drives onto land on treads. Here is how a student…
diy projects
Analog Redial: ESP32-C6 Brings Rotary Phones Back to Life
An ESP32-C6, an audio codec, and a SLIC chip let old rotary phones call each other, run an answering machine, and even ring for…
esp32 & esp8266
ESP-FLUTTER: A 70 g ESP32-C3 Butterfly Robot That Flies
A 70 g ornithopter with two servos, 50 wing LEDs, and a XIAO ESP32C3 brain flaps its way into the air. See how it…
diy projects
Digital Candle: ESP32-S3 and a 3,545-Parameter AI Flame
A tiny neural network on an ESP32-S3 paints a never-repeating flame across 144 amber LEDs. See how it works and how to try a…
esp32 & esp8266
DIY Lockpicking Robot Uses ESP32-C3, Load Cells and Claude AI
An ESP32-C3, two load cells, and an AI model team up to feel and open pin tumbler locks. Here is the sense-decide-act loop worth…