esp32 & esp8266
Hide an ESP32-C3 IR Blaster Inside a Walnut for Smart Home Control
A maker hid an ESP32-C3 inside a walnut shell to beam IR commands at gear that never got a Wi-Fi upgrade. Here is how…
news & releases
Raspberry Pi Official Annual 2027: A Year of Pi Builds in One Book
A year of Raspberry Pi projects in one book: home automation, a robot arm hack, Pi 500+ upgrades, and updated OS guides. Here's your…
iot & smart home
Tiny Contacts Fits Four Relays Onto a 42 x 38 mm ESP32 Board
Four Omron surface-mount relays on a 42 x 38 mm board, driven by a ULN2003A so your ESP32 GPIO pins never touch a relay…
uncategorized
Build an ESP32 Water Tank Controller With an Ultrasonic Sensor
An ESP32, an ultrasonic sensor, and a relay turn a manual rooftop water pump into a hands-off system that fills the tank and stops…