Smart PC Power Button using ESP32 - Control your desktop PC remotely using an ESP32, web interface, and a relay module. Supports physical button press, local Wi-Fi triggering, and web server interface ...

Automatic Plant Watering System Block Diagram The below block diagram gives us a clear view of how this automatic plant watering system will work. Basically we have the Arduino Uno R4 which will read ...

Circuit and Working Fig. 2 shows the circuit diagram of the humidifier. The system is built around an Arduino Uno (MOD1), a 5V SPDT relay module, a humidity sensor (DHT22), an ultrasonic humidifier, ...