Out Of This World 5v Relay Module Circuit Diagram

Now we need to test the circuit diagram of the relay module on a breadboard.

5v relay module circuit diagram. To show you how to wire the relay let s build a temperature controlled relay circuit that will turn off a light bulb when the temperature of a thermistor reaches 150 f. Take a look the schematic diagram and pcb layouts then wire the circuit on a breadboard double check the schematics diagrams and breadboard wiring. How to use a relay.

There is no connection between the low voltage circuit operated by the microcontroller and the high power circuit. In this example we will connect the relay module with arduino in the normally open state. 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.

The ky 019 consist of a 1mω resistor a led a 1n4007 rectifier diode and a 5vdc relay. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. You can use them to turn off a large motor if gets too hot or turn on a heater if the.

Watch the latest video for this 5v relay. Https youtu be g6k8spjyif8this video shows you how to use 5v relay module for arduino first the 5v 1 channel rela. 5v and gnd and connect the control signal from arduino to control pin on the relay board.

Thermistors are really useful with 5v relays. Let us learn how to use one in our circuits based on the requirement of our project. Then connect the signal pin of the relay module with the pin 12 of the arduino.

3v relay 12v relay 1 channel relay module 4 channel relay module. Coming to the load part i e. 5v isolation relay module description the isolation relay module is an electrically operated switch that allows you to turn on or off a circuit using voltage and or current much higher than a microcontroller could handle.