These devices have key drawbacks. Water level indicators require manual pump operation and often waste power as multiple LEDs ...

One is charged with handling the mains power side of things. It carries an SPDT relay for switching AC power, and a DC power supply to run the ESP32 itself. The controller board holds the ...

Black Ops 6 "stuck on waiting for relay" error is one of the more common issues for Activision's latest shooter title. However, it can be quite tricky to avoid as it ...