Interface temperature sensor, LCD and buzzer with Arduino UNO. Develop an Arduino sketch do follows: Display temperature on the LCD. If temperature is above 50 `C then sound the buzzer otherwise silent it. Temperature warning system.

Here i am using online IDE Tinkercad . If you don't know what is tinkercad then refer my blog HERE or else you can use offline IDE also.

Code:-

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {

  lcd.begin(16, 2);

  Serial.begin(9600);

pinMode(9,OUTPUT);

}

void loop() {

float dout = analogRead(A0);

  float tv = (dout*5000)/1024.0;

  float tc = (tv/10)+(-50);

  lcd.print(tc);

  delay(1000);

  lcd.clear();

  if(tc>50){

                      digitalWrite(9,HIGH);  }

   }

Output :-



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