Light On And Off Controling Using Touch Sensor

Just Do Electronics April 14, 2020

Touch Sensor And Relay Based Light Control System Using Arduino

Circuit Diagram :-

Code :-

 
//Prateek
//www.prateeks.in

#include<LiquidCrystal.h>
LiquidCrystal lcd(12,11,10,9,8,7);

int touchPin = 2;
int relayPin = 3;

int val = 0;
int lightON = 0;
int touched = 0;

void setup() {
  lcd.begin(16,2);
lcd.print(" Touch Based");
lcd.setCursor(0, 1);
lcd.print("Door Lock System");
  Serial.begin(9600);
  pinMode(touchPin, INPUT); 
  pinMode(relayPin, OUTPUT);

}

void loop() {

  val = digitalRead(touchPin);

  if(val == HIGH && lightON == LOW){

    touched = 1-touched;
    delay(100);
  }    

  lightON = val;

      if(touched == HIGH){
        Serial.println("Light ON");
        lcd.clear();
        lcd.print("Status:  OFF");
        lcd.setCursor(0, 1);
        lcd.print("Touch to ON");
        digitalWrite(relayPin, LOW); 
       
      }else{
        Serial.println("Light OFF");
        lcd.clear();
        lcd.print("Status:  ON");
        lcd.setCursor(0, 1);
         lcd.print("Touch to OFF");
        digitalWrite(relayPin, HIGH);
   
      }     

  delay(100);
}

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