Temperature sensor (LM35) interfacing with arduino & LCD in proteus
In this article we will learn how to interface arduino with Temperature sensor (LM35) & LCD in proteus.
In the last post we will learn how to interface arduino with IR proximity sensor and LCD in proteus. You can visit our website,
I hope you appreciate my work, let’s discuss about today’s project.
What is Temperature sensor?
Components which we use in this project are listed below:
- Temperature sensor (LM35)
- Arduino UNO
- I2C
- Resistor (10K)
- LEDs
- LCD display
- Jumper wires
Diagram of this project is below:
Construction of Temperature sensor (LM35) interfacing with arduino & LCD in proteus:
- Connect the +ve pin of temperature sensor with +ve
- Connect the –ve point of temperature sensor with the GND
- Connect the out pin of temperature sensor with the A0 pin of arduino UNO
- Connect the A5 pin of arduino with the pin 14 of I2C
- Connect the A4 pin of arduino with the pin 15 of I2C
- Connect the A0,A1,A2 pins of I2C with the GND
- Connect the pin 8 of arduino with the one side of R3
- Connect the other side of R3 with the +ve point of LED1
- Connect the –ve side of LED1 with the GND
- Connect the pin 9 of arduino with the one side of R2
- Connect the other side of R2 with the +ve point of LED2
- Connect the –ve point of LED2 with the GND
- Connect the pin 10 of arduino with the one side of R1
- Connect the other side of R1 with the +ve side of LED1
- Connect the –ve side of LED1 with the GND
- Connect the VSS point of LCD display with the GND
- Connect the VDD point of LCD display with the +ve point
- Connect the pin 4 of I2C with the point RS of LCD display
- Connect the pin 5 of I2C with the point RW of LCD display
- Connect the pin 6 of I2C with the point E of LCD display
- Connect the pin 7 of I2C with the point D3 of LCD display
- Connect the pin 9 of I2C with the point D4 of LCD display
- Connect the pin 10 of I2C with the point D5 of LCD display
- Connect the pin 11 of I2C with the point D6 of LCD display
- Connect the pin 12 of I2C with the point D7 of LCD display
Working of Temperature sensor (LM35) interfacing with arduino & LCD in proteus:
Interfacing a temperature sensor with an Arduino is a common project that allows you to measure and display temperature data.
Applications of Temperature sensor (LM35) interfacing with arduino & LCD in proteus:
- Weather Station
- Thermostat
- Incubator Controller
- Home Automation
Advantages of Temperature sensor (LM35) interfacing with arduino & LCD in proteus:
- Accurate Temperature Measurement
- Ease of Interface
- Wide Temperature Range
- Low Power Consumption
- Analog Output
Program code of this project is below:
#include <LiquidCrystal_I2C.h >
LiquidCrystal_I2C lcd(0x20, 16, 2);
int R_LED = 8;
int Y_LED = 9;
int G_LED = 10;
void setup() {
lcd.begin(16, 2);
lcd.init();
pinMode(R_LED, OUTPUT);
pinMode(Y_LED, OUTPUT);
pinMode(G_LED, OUTPUT);
lcd.setCursor(2, 0);
lcd.backlight();
lcd.print(“Hello”);
lcd.setCursor(0, 1);
lcd.print(“Projectiot123″);
delay(1000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(” Digital “);
lcd.setCursor(0, 1);
lcd.print(” Thermometer “);
delay(500);
lcd.clear();
}
void loop() {
float vol = analogRead(A0) * (5.0 / 1023.0) * 100;
delay(10);
lcd.clear();
lcd.setCursor(2, 0);
lcd.print(“Temperature”);
lcd.setCursor(4, 1);
lcd.print(vol);
lcd.write(0);
lcd.print(“C”);
delay(1000);
if (vol <= 31)
{
digitalWrite(G_LED, HIGH);
digitalWrite(Y_LED, LOW);
digitalWrite(R_LED, LOW);
}
else if (vol >= 32 && vol <= 40)
{
digitalWrite(R_LED, LOW);
digitalWrite(Y_LED, HIGH);
digitalWrite(G_LED, LOW);
}
else if (vol >= 41)
{
digitalWrite(G_LED, LOW);
digitalWrite(Y_LED, LOW);
digitalWrite(R_LED, HIGH);
}
delay(100);
}