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Lesson 65: Controlling 2 channel Solid State relay with push buttons with Arduino
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Part 6: Using Relay with Arduino
In this lesson we learn how to use two channel Solid State Relay and turn them ON and OFF using two push button where the state is toggled. Push ON and push off. The wiring of a relay module is shown and code is explained.
- 00:00 Introduction
- 08:32 Relay power rating
- 09:54 Wiring Explained
- 11:39 Code Explained
- 13:31 Demonstration
/*
* Lesson 65: Using Solid State Relay with Arduino and two push buttons
* Arduino code to push-ON and push-OFF 2 channel Solid State Relay
* when button pushed, relay ON and stay ON
* push again to make it OFF and stay OFF
* this can be done with 2 push button to control 2 solid state relay
*
* written by Ahmad Shamshiri for Robojax.com
* on Feb 25, 2019 at 21:38 in Ajax, Ontario, Canada
Watch instruction video for this code: https://youtu.be/jGncm9kPt3Y
This video is part of Arduino Step by Step Course which starts here: https://youtu.be/-6qSrDUA5a8
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
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* * 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 download 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 pushButton1 = 2;// define push button inputs
const int pushButton2 = 3;// define push button inputs
const int ssr1Pin =8;// output pins where solid state will be connected
const int ssr2Pin =9;// output pins where solid state will be connected
int triggerType = HIGH;// type LOW if low trigger and HIGH if high trigger SSR is used
int pushed1 =0;// status of button 1
int pushed2 =0;// status of button 2
int ssr1Status =HIGH;// initial status of ssr 1 (HIGH or LOw)
int ssr2Status =HIGH;// initial status of ssr 2 (HIGH or LOw)
int ssrON, ssrOFF;// used for two different SSR trigger type. Do not change
void setup() {
// Robojax.com 2 channel SSR 20190225
Serial.begin(9600);// initialize serial monitor
pinMode(pushButton1, INPUT_PULLUP); // define pin for pushButton1
pinMode(pushButton2, INPUT_PULLUP); // define pin for pushButton1
pinMode(ssr1Pin, OUTPUT);// define pin for SSR1
pinMode(ssr2Pin, OUTPUT); // define pin for SSR2
if(triggerType ==HIGH)
{
ssrON = HIGH;
ssrOFF = LOW;
}else{
ssrON = LOW;
ssrOFF = HIGH;
}
digitalWrite(ssr1Pin, ssrOFF);// initial relay status to be OFF
digitalWrite(ssr2Pin, ssrOFF);// initial relay status to be OFF
// Robojax.com 2 channel SSR 20190225
}
void loop() {
// Robojax.com 2 channel SSR 20190225
int val1 = digitalRead(pushButton1); // read pushButton1 vlaue
int val2 = digitalRead(pushButton2); // read pushButton2 vlaue
if(val1 == HIGH && ssr1Status == LOW){
pushed1 = 1-pushed1;
delay(100);
}// if for pushbutton 1
if(val2 == HIGH && ssr2Status == LOW){
pushed2 = 1-pushed2;
delay(100);
}// if for pushbutton 2
ssr1Status = val1;// save the pushbutton 1 status
ssr2Status = val2;// save the pushbutton 2 status
if(pushed1 == HIGH){
Serial.println("SSR1 ON");
digitalWrite(ssr1Pin, ssrON); // Turn SSR1 ON
}else{
Serial.println("SSR1 OFF");
digitalWrite(ssr1Pin, ssrOFF);
}// else
if(pushed2 == HIGH){
Serial.println("SSR2 ON");
digitalWrite(ssr2Pin, ssrON); // Turn SSR2 ON
}else{
Serial.println("SSR2 OFF");
digitalWrite(ssr2Pin, ssrOFF);
}// else
Serial.println("==");
delay(100);
// Robojax.com 2 channel SSR 20190225
}// loop end
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