4 Channel 5v Relay Module Circuit Diagram

Arduino 4 channel relay module.

4 channel 5v relay module circuit diagram. Relays are most commonly used switching device in electronics. By using this relay board we can operate 4 ac appliances at a time. 3v relay 12v relay 1 channel relay module 4 channel relay module. Most of the parts was lying around my home i used to save little more here the list of all the parts you needed to do this project.

There are four separate circuits on one board. So connect the 5v and the ground of the arduino with the 5v and the ground of the relay module. In this 4 channel relay driver circuit we have used an optocoupler whic his triggered by active low signal to trigger the npn transistor which further drives the relay. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay.

Although the circuit diagram explains the detailed connections practically we didn t need to make all the connections. Working status indicator lights are conducive to the safe use. The connections for connecting the relay module with arduino are very simple. Circuit diagram and explanation.

In this project we will make a 4 channel relay driver module circuit for relay based applications. 5v and gnd and connect the control signal from arduino to control. Let us learn how to use one in our circuits based on the requirement of our project. The 4 channel relay breakout is an easy way to use your arduino raspberry pi or other microcontroller to switch high voltages and high current loads.

Now we need to collect some parts that we needed to make the diy relay module. There is no connection between the low voltage circuit operated by the microcontroller and the high power circuit. Here we have used 12v 10amp relay in this pcb board but you can also use 5v relays. Description of connections.

5 volt relay i used 6 volt because i need 6 volt relay 2. Relay output maximum contact is ac250v 10a and dc30v 10a. The board is both 3 3v and 5v logic compatible and uses 4 digital outputs to control 4 individual relays. Relay driver circuit explanation.

This relay module is 5v active low. Standard interface can be directly connected with microcontrollers. We have put a three pin screw terminal blocks nc nuteral no for connecting appliances. In this circuit we have designed an isolated pcb for 4 relays.

Connecting 4 channel relay module often confuses a new user. How to use a relay. Most relay modules whether 5v or 12v will come with the aforementioned connection and hence all you need is to give power supply to the relay module i e. The ac connection part which is screw terminal provides a common com normally open no and a normally closed nc terminal.