diy projects
Burninator: A Panel-Meter Kitchen Timer Built on an AVR DB
Burninator swaps buttons and screens for a vintage panel meter, an AVR DB chip, and PWM. See how the needle timer works and how…
iot & smart home
iroh Mesh Networking Lands on the RP2350 Pico 2 and Presto
iroh's Rust mesh networking stack now runs on the RP2350. See how Pico 2 and Presto boards can link directly over Wi-Fi without a…
esp32 & esp8266
Waveshare ESP32-S31-Zero: Wi-Fi 6 RISC-V Board, 28×18 mm
Waveshare's ESP32-S31-Zero fits dual 320 MHz RISC-V cores, Wi-Fi 6, Zigbee and up to 32 MB PSRAM onto a 28x18 mm board that costs…
microcontrollers
Seeed XIAO STM32C5: First ST Chip in the Tiny XIAO Family
Seeed's XIAO STM32C5 packs a 144 MHz Cortex-M33, two CAN FD buses and a heated IMU on a thumb-sized board for under $11. Here…
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…
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…
diy projects
Sylphide OS Turns Cheap Microcontrollers Into Retro Desktop PCs
Sylphide OS gives ESP32-P4 and Pico 2 boards a windowed desktop with a mouse, built on FreeRTOS. Here's what runs today and what to…
diy projects
Weekend Build: An Intel 8048 Conference Badge from 1976
An Intel 8048 from 1976, an EEPROM and two vintage LED displays make a conference badge you can wire up in a weekend. Parts,…
diy projects
TWEACMAN: A Pocket WAV Player With Tape-Style Scrubbing Knobs
Two dual-pot knobs and a Renesas RA6M5 board turn WAV playback into tape-style scrubbing, from 0.001x to 1000x. Here's how the trick works.
microcontrollers
BeagleConnect QuadESC Drives Four Brushless Motors at Once
BeagleBoard's QuadESC pairs a 200 MHz Cortex-M33 module with four motor drivers rated 40 A each. Here is what it means for student robot…
microcontrollers
IR Remote Protocols Explained: NEC, RC-5 and IrDA for Makers
Why infrared still beats Bluetooth for simple, private control, and how NEC, RC-5 and IrDA work. Decode your first remote with an Arduino or…