Project Video
Project Details
This video shows how to drive a relay using transistor turn ON and turn OFF using Arduino code.
This module has problem with voltage to relay. See my video Showing you how to solve the problem.
Project Code
// This sketch is part of Video Tutorial showing how to control a 5V relay
// please watch the video at this URL: https://youtu.be/N-fFk51Eb8s
// Written by Ahmad Shamshiri for Robojax.com video on October 12, 2018 at 21:19 in Ajax, Ontario
// Introduction to 5V relay.
int relayPin = 2;// define pin for relay
void setup() {
// Robojax.com relay tutorial 20181012
pinMode(relayPin, OUTPUT);
Serial.begin(9600);// initialize serial monitor
Serial.println("Robojax.com Relay Module");
digitalWrite(relayPin, HIGH);// turn relay ON
delay(2000);// wait for boot
}
void loop() {
// Robojax.com relay tutorial 20181012
digitalWrite(relayPin, HIGH);// turn relay ON
Serial.println("Relay ON");
delay(300);// wait for 5 seconds
digitalWrite(relayPin, LOW);// turn relay OFF
Serial.println("Relay OFF");
delay(1000);// wait for 3 secons
