Arduino LM35

In this Project, we will see about how to interface LM35 Temperature Sensor with Arduino.

Circuit Diagram:

Arduino Code:

lm35_simple_code.ino

//This Code is Developed by Sdev
//Follow Us Here : https://youtube.com/sdevelectronics

#define LM35 A0

void setup() {
  Serial.begin(9600);
}

void loop() {
  float lmvalue = analogRead(LM35);
  float tempr = (lmvalue * 500) / 1023;
  Serial.print(lmvalue);
  Serial.print("     ");
  Serial.println(tempr);          //Temperature in Celcius
  delay(500);

}

lm35_condition_code.ino

//This Code is Developed by Sdev
//Follow Us Here : https://youtube.com/sdevelectronics

#define LM35 A0
#define RED 7
#define GREEN 6

void setup() {
  Serial.begin(9600);
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
}

void loop() {
  float lmvalue = analogRead(LM35);
  float tempr = (lmvalue * 500) / 1023;
  Serial.println(tempr);          //Temperature in Celcius

  //Condition
  if (tempr > 60) {
    digitalWrite(RED, HIGH);
    digitalWrite(GREEN, LOW);
  }
  else {
    digitalWrite(GREEN, HIGH);
    digitalWrite(RED, LOW);
  }
  delay(200);
}

Youtube Video Tutorial:

https://youtu.be/9czGfmporjs

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You can get the all the required files (like Circuit Diagram, Arduino.ino file, Libraries Used, and others) for the project  in ZIP format and much more...