Other Arduino Codes and Videos by Robojax
You will learn how to control 4 channel relay with 4 push buttons with push and keep pressed
to keep it ON and release to turn it OFF using provided Arduino.
This code is to toggle the light. If you want to push and hold to turn ON and release
for turn OFF, See this code
/*
* Arduino code to use 4 push buttons to turn ON of OFF 4 channel relay
* push and hold to turn ON
* release to turn OFF
* this can be done with 4 push button to control 4 relays.
I have written code where you can toggle the relay push-ON and push-off
*
* written by Ahmad Shamshiri for Robojax.com
* on December 11, 2018 at 19:39 in Ajax, Ontario, Canada
watch video instruction for this code:https://youtu.be/3EZecphNdAI
Get this code and other Arduono codes from Robojax.com
*
* 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 pushButton[] ={2,3,4,5};// define push button inputs
const int relayPin[]={11,10,9,8};// output pins where 4 relays will be connected
String relayNames[] ={"CH1", "CH2","CH3","CH4"};// Just put name for 4 relays
int pushed[] ={0,0,0,0};// status of each buttons
int relayStatus[] ={HIGH,HIGH,HIGH,HIGH};// initial status of relay
void setup() {
// Robojax.com 4-Relay-4-Push button 20181211
Serial.begin(9600);// initialize serial monitor
for(int i=0; i<4; i++)
{
pinMode(pushButton[i], INPUT_PULLUP);
pinMode(relayPin[i], OUTPUT);
digitalWrite(relayPin[i], HIGH);// initial relay status to be OFF
}
// Robojax.com 4-Relay-4-Push button 20181211
}
void loop() {
// Robojax.com 4-Relay-4-Push button 20181211
for(int i=0; i<4; i++)
{
int val = digitalRead(pushButton[i]);
if(val == HIGH){
Serial.print(relayNames[i]);
Serial.println(" ON");
digitalWrite(relayPin[i], LOW);
}else{
Serial.print(relayNames[i]);
Serial.println(" OFF");
digitalWrite(relayPin[i], HIGH);
}// else
}// for
Serial.println("==");
delay(100);
// Robojax.com 4-Relay-4-Push button 20181211
}// loop end
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