esp32 & esp8266
Sesame: The 264-Gram ESP32 Quadruped Robot That Also Flies
Dorian Todd gave his $60 Sesame walker drone motors and cut it to 264 g. See how SG90 servos, leg stops and a split…
diy projects
Build a Private ESP32 Alarm Clock With Rouse Firmware
Rouse turns an ESP32-S3 touch board or Cheap Yellow Display into a bedside alarm clock with no account, no ads and no cloud. Here…
diy projects
Build a $40 ESP32-S3 E-Reader With an E-Paper Screen
An ESP32-S3, an e-paper panel and a five-way button make a WiFi e-reader for $35 to $60. Here is the wiring, the gotchas and…
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…
raspberry pi
Adafruit LT8912B Turns DSI Into HDMI for Pi 5 and ESP32-P4
A small converter turns the DSI signal from a Raspberry Pi 5 or ESP32-P4 into HDMI, up to 1080p60, configured over I2C. Here is…
esp32 & esp8266
ESP32 Demoboard Adds 5 Sensor Projects: NFC, Lightning, Gestures
Five new Arduino demos for an ESP32 demoboard cover gesture sensing, lightning detection, NFC, air pressure and a PIR alarm. Pick one for your…
esp32 & esp8266
Olimex UEXT-CH390 Adds Wired Ethernet to ESP32 and Pico
Olimex's EUR 4.95 UEXT-CH390 brings 100 Mbit wired Ethernet to RP2040 and ESP32 boards, with ESPHome support. Here is a weekend plan to try…
diy projects
BEAM Robot Pet: A Solar Walker With No Microcontroller
ALTco built a battery-free robot pet that roams toward light using 74HC240 chips and coupled oscillators, no code at all. See how it works…
diy projects
Weekend Build: ESP32 Game Boy Emulator on an ST7735 LCD
Engineeroids turned a spare ST7735 LCD and an ESP32 DevKit into a Game Boy emulator on perfboard. Here is the parts list and the…