ULTRASONIC RANGE FINDER USING ARDUINO

"Temparature monitor " using arduino.

This can be used to measure your room temparature in two units....

PARTS NEEDED

Arduino uno

LCD 2x16

Lm35

Jumber wires

Optional power supply 9v

Bread board
Potentiometer 10k

Circuit diagram

Lcd connecting instructions

* LCD RS pin to digital pin 12

 * LCD Enable pin to digital pin 11

 * LCD D4 pin to digital pin 5

 * LCD D5 pin to digital pin 4

 * LCD D6 pin to digital pin 3

 * LCD D7 pin to digital pin

* LCD R/W pin to ground

 * 10K resistor:

 * ends to +5V and ground

 * wiper to LCD VO pin (pin 3)

LCD pinouts

The program code

 //temparature sensor using lm35 and lcd 2*16
//www.appuneurons.blogspot.com

#include<LiquidCrystal.h>

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

const int sensor=A1; // Assigning analog pin A1 to variable 'sensor'

float tempc; //variable to store temperature in degree Celsius

float tempf; //variable to store temperature in Fahreinheit

float vout; //temporary variable to hold sensor reading


void setup() { pinMode(sensor,INPUT); // Configuring pin A1 as input

    Serial.begin(9600); lcd.begin(16,2);

   delay(500); }

void loop() { vout=analogRead(sensor);

vout=(vout*500)/1023; tempc=vout;
 // Storing value in Degree Celsius
 
  tempf=(vout*1.8)+32;
 // Converting to Fahrenheit
 
 lcd.setCursor(0,0);
 
 lcd.print("in DegreeC= "); lcd.print(tempc);
 
  lcd.setCursor(0,1); lcd.print("in Fahrenheit=");
 
 lcd.print(tempf);
 
  delay(1000); //Delay of 1 second for ease of viewing in serial monitor
}

Upload the sketch and enjoy.......

Show working

 END