/*
 * This is the Arduino code for Dual Channel 5V Relay
 * to control turning ON or OFF AC or DC loads. You can control 2 different loads such as bulbs, or a heater, or other machines.
  Watch the video instruction for this code: https://youtu.be/EclIomn_3dI
 
 *  * 
 * Written by Ahmad Shamshiri for Robojax Video
 * Date: December 26, 2017, in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purposes only.
 


Get this code and other Arduino codes from Robojax.com
Learn Arduino step by step in a structured course with all materials, wiring diagrams and libraries
all in one place. Purchase my course on Udemy.com: http://robojax.com/L/?id=62

If you found this tutorial helpful, please support me so I can continue creating 
content like this. You can support me on Patreon: http://robojax.com/L/?id=63

or make a donation using PayPal: http://robojax.com/L/?id=64


 * 
  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

 


void setup() {
  
  Serial.begin(9600);// setup Serial Monitor to display information
  pinMode(7, OUTPUT);// connected to Relay 1
  pinMode(8, OUTPUT);// connected to Relay 2

}

void loop() {
  digitalWrite(8, LOW); // turn relay 2 OFF 
      Serial.print("Pin 8 LOW");
  digitalWrite(7,HIGH);// turn relay 1 ON
      Serial.println(" Pin 7 HIGH");
  delay(3000);// keep in relay 2 OFF and relay 1 On for 3 seconds
  digitalWrite(7, LOW);// turn relay 1 OFF
  digitalWrite(8,HIGH);// turn relay 2 ON
      Serial.print("Pin 7 LOW");
      Serial.println(" Pin 8 HIGH");
  delay(3000);// keep in relay 1 OFF and relay 2 On for 3 seconds


}

/*
 * This is the Arduino code for a dual-channel 5V relay
 * to control turning ON or OFF AC or DC loads. You can control 2 different loads such as bulbs, a heater, or other machines.
 Watch the video instruction for this code: https://youtu.be/EclIomn_3dI
 
 *  * 
 * Written by Ahmad Shamshiri for Robojax Video
 * Date: December 26, 2017, in Ajax, Ontario, Canada
 * Permission granted to share this code, given that this
 * note is kept with the code.
 * Disclaimer: This code is "AS IS" and for educational purposes only.
 


Get this code and other Arduino codes from Robojax.com
Learn Arduino step by step in a structured course with all materials, wiring diagrams, and libraries
all in one place. Purchase my course on Udemy.com: http://robojax.com/L/?id=62

If you find this tutorial helpful, please support me so I can continue creating 
content like this. You can support me on Patreon: http://robojax.com/L/?id=63

or make a donation using PayPal: http://robojax.com/L/?id=64


 * 
  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

const int relay1Pin =7;// define pin for relay 1
const int relay2Pin =8; // define pin for relay 2


void setup() {
  
  Serial.begin(9600);// setup Serial Monitor to display information
  pinMode(relay1Pin, OUTPUT);// connected to Relay 1
  pinMode(relay2Pin, OUTPUT);// connected to Relay 2

}

void loop() {
  digitalWrite(relay2Pin, LOW); // turn relay 2 OFF 
      Serial.print("Pin 8 LOW");
  digitalWrite(relay1Pin,HIGH);// turn relay 1 ON
      Serial.println(" Pin 7 HIGH");
  delay(3000);// keep in relay 2 OFF and relay 1 On for 3 seconds
  digitalWrite(relay1Pin, LOW);// turn relay 1 OFF
  digitalWrite(relay2Pin,HIGH);// turn relay 2 ON
      Serial.print("Pin 7 LOW");
      Serial.println(" Pin 8 HIGH");
  delay(3000);// keep in relay 1 OFF and relay 2 On for 3 seconds


}