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In this lesson we learn what Solid State Relay is and how to use it with Arduino to control an AC bulb. The wiring of a relay module is shown and code is explained.
/*
* Lesson 64: Using Solid State Relay with Arduino
* This is code to control 2 channel Solid State Relay (SSR) module using Arduino
* Written by Ahmad Shamshiri for Robojax.com
* on Feb 24, 2019 at 15:11 in Ajax, Ontario, Canada
Watch instruction video for this code: https://youtu.be/DumIZ3lkHP4
This video is part of Arduino Step by Step Course which starts here: https://youtu.be/-6qSrDUA5a8
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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/>.
*/
// Robojax 2ch SSR control 20190224
int ch1Pin = 2;// define pin 2 for chan 1 of SSR
int ch2Pin = 3;// define pin 3 for chan 2 of SSR
int triggerType = HIGH;// type LOW if low trigger and HIGH if high trigger SSR is used
int ssrON, ssrOFF;// used for two different SSR trigger type. Do not change
void setup() {
// Robojax 2ch SSR control 20190224
pinMode(ch1Pin, OUTPUT);//define ch1Pin as output
pinMode(ch2Pin, OUTPUT);//define ch2Pin as output
if(triggerType == HIGH)
{
ssrON = HIGH;
ssrOFF = LOW;
}else{
ssrON = LOW;
ssrOFF = HIGH;
}
// Robojax 2ch SSR control 20190224
digitalWrite(ch1Pin,ssrOFF);// set initial state of SSR 1: OFF
digitalWrite(ch2Pin,ssrOFF);// set initial state of SSR 2: OFF
}
void loop() {
// Robojax 2ch SSR control 20190224
digitalWrite(ch1Pin,ssrON);// turn relay SSR1 ON
digitalWrite(ch2Pin,ssrOFF);// turn relay SSR2 OFF
delay(3000);// waite for 3 seconds
digitalWrite(ch1Pin,ssrOFF);// turn relay SSR1 OFF
digitalWrite(ch2Pin,ssrON);// turn relay SSR2 ON
delay(3000);// waite for 3 seconds
// Robojax 2ch SSR control 20190224
delay(1);
}// loop
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