Goal: Control lights and appliances using relays, sensors, and a web interface. Components Needed: Raspberry Pi 4. Arduino Uno. 4-channel relay module. PIR motion sensor. Steps: Use Arduino to handle ...

The Raspberry Pi Zero 2W is one of the most useful little boards I've ever worked with. At just $15, it's affordable enough ...

The ESPHome 2025.6.0 open-source firmware was released on June 18, 2025, with ESP32-P4 support and an initial OpenThread ...

SDRplay’s nRSP-ST software-defined radio allows remote control via its built-in web-server, a gamechanger for DXers, says.

Woloschuk on Thursday said GPA is working the matter out with the U.S. Environmental Protection Agency. Hanwha previously failed to meet a December 2023 deadline to finish the solar project.

A video graphics array (VGA) (640 × 480) indirect time-of-flight (ToF) CMOS image sensor has been designed with 4-tap 7-μm global-shutter pixel in 65-nm back-side illumination (BSI) process. With a ...