Control up to 65 280 relays with your arduino.
Arduino power control relay.
Circuit diagram and working.
The control pin for the relay is connected to the pin 8 of arduino.
In this arduino relay control circuit we have used arduino to control the relay via a bc547 transistor.
Finally the power outlet box.
Use the io expander and relay expander with the arduino to control up to 65 280 relays.
First connect neutral wire from the supply to neutral connector on the socket.
Project tutorial by christian.
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.
Below given is relay driver circuit to build your own relay module.
Here to turn on the relay with arduino we just need to make that arduino pin high a0 in our case where relay module is connected.
Coming to the relay the 5v and gnd pins for the relay module are given from the arduino uno.
Learn how to use relay with arduino how relay works how to connect relay to arduino how to code for relay how to program arduino step by step.
That configuration physically isolates the relays from the arduino with the module s built in optocoupler.
We need to open the box and make connections.
The detail instruction code wiring diagram video tutorial line by line code explanation are provided to help you quickly get started with arduino.