14 - Read switch and Buzzer simulation with and Without Arduino nano 15 - PIR Sensor interfacing with Arduino Nano 16 - Ultrasonic sensor interfacing with Arduino Nano distance measurement 17 - LCD ...
In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...