RISHI_Temperature Logger

Requirement :

1. LM35 Temperature Sensor

2. Arduino UNo

3. Jumper Wire

4. Power Supply

Arduino Code:

int t=0;

int vcc=A0; // sets analog input A0 as +5V source for LM35

int sensor=A1; // sets A1 as the sensor input

int gnd=A2; // sets analog input A2 as ground for LM35

float temp;

float tempc;

float tempf;

void setup()

{

pinMode(vcc,OUTPUT);

pinMode(gnd,OUTPUT);

pinMode(sensor,INPUT);

digitalWrite(vcc,HIGH); // sets analog input A0 HIGH

digitalWrite(gnd,LOW); // sets analog input A2 LOW

Serial.begin(9600); // sets the baud rate at 9600

}

void loop()

{ delay(2000); // calls a 2 second delay

t=t+2; // increments the time by 2 every two seconds

temp=analogRead(sensor); // reads the LM35 output

tempc=(temp*5)/10; // converts the digital value into temperature degree C

tempf=(tempc*1.8)+32; // converts degree C to degree F

Serial.println("...............");

Serial.println("Temperature logger by RISHIKESH KUMAR");

Serial.print("Time in sec = "); // prints the time on serial monitor window

Serial.println(t);

Serial.print("Temperature in deg C = "); // prints the temperature in degreeC

Serial.println(tempc);

Serial.print("Temperature in deg F = "); // prints the temperature in degreeF

Serial.println(tempf);

}