The main usage of the Relay was seen in the history of transmitting and receiving the information, that was called as Morse code where the input signals used to be either 1 or 0, these change in ...

Learn how Relay works by writing your own. Contribute to robrichard/relay-tutorial development by creating an account on GitHub.

The L1 and L2 is the internal electromagnetic coil’s pin. We need to control these two pins for turning the relay ‘ON’ or ‘OFF’. Next three pins are POLE, NO and NC. The pole is connected with the ...

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 ...