5v 1 Channel Relay Module Circuit Diagram. Let us learn how to use one in our circuits based on the requirement of our project. 3v relay 12v relay 1 channel relay module 4 channel relay module.
There are two types of relay modules according to a type of control signal used for relay activation. As you can see in the circuit diagram the internal circuit of 5v single channel relay module consists of a transistors two resistors two light emitting diodes and one 5v relay. 3v relay 12v relay 1 channel relay module 4 channel relay module.
Relays are most commonly used switching device in electronics.
Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. How to use a relay. As you can see it contains two pc817c based optocouplers.
