Room Temperature Monitoring Using Arduino and LM-35

In this project we will monitor room temperature with LM 35 temperature sensor. I use a LCD to display the temperature. Make the connections according to circuit diagram and upload the source code to the arduino board. Here i prefer Arduino Mega 2560 board. You can choose Arduino UNO or any other Arduino board for this task.

Step 1: Requirement

Hardware:-

1. Arduino Board.

2. LM-35 (Temperature Sensor).

3. 16x2 LCD.

4. Resistor (1 K ohm).

5. Breadboard.

6. Jumper Wires.

Software:-

1. Arduino IDE.Download Here.

Step 2: Circuit Diagram

Step 3: Source Code

#include

lcd(7,6,5,4,3,2);

int val;

int tempPin = 1;

void setup( ) {

pinMode(tempPin, INPUT);

lcd.begin(16, 2);

lcd.clear( );

}

void loop( ) {

val = analogRead(tempPin);

float temp = ( val*500)/1023;

float farh = (temp*9)/5 + 32;

lcd.setCursor(0, 0);

lcd.print("Temp(C)=");

lcd.print(temp);

lcd.print("*C");

lcd.setCursor(0,1);

lcd.print(" Temp(F)=");

lcd.print(farh);

lcd.print("F");

delay(1000);

}

Comments

[asrajput70111]

sir iss program ko ek baar daalne k baad without usb connection work krega ye mtlb battery s power de bs agr toh

[Aman_Kumar]

yes, it will work on battery.

[asrajput70111]

sir ye jo program daal rhy h iska aruino m position ko leke bhi kya programming vary krti h