Temperature reading using Arduino and LM35DZ sensor

Temperature reading using an Arduino and a sensor LM35DZ

A tutorial is a method of processing a temperature sensor LM35DZ using the Arduino module.

 

In this example we used the following elements:

 

Connect the sensor with Arduino:

The sensor using the Arduino you should connect the layout as follows:

 

Sensor Pin Arduino
GND GND
Signal A1
Vcc 5 V

 

 

The connection scheme of sensor with the Arduino Uno.

 

Program for Arduino

In the example, we used the following code:

 

  1. int sensor = A1; //analog pin A1 is connected to the signal from the sensor 
  2. float VOLTS; 
  3. float TEMP; 
  4.  
  5. void setup(){ 
  6.  Serial.begin(9600); //initialize serial monitor 
  7.  Serial.println("Test temperature sensor"); 
  8. } 
  9.  
  10. void loop(){ 
  11.  int reading = analogRead(sensor); //read the value from the sensor 
  12.  VOLT = (reading * 5.0) / 1024.0; //conversion of the measured value for voltage in volts (for connection at 5 V) 
  13.  TEMP = VOLT * 100; //conversion from voltage to temperature, the resolution of the sensor is 10 mV per degree 
  14.  Serial.print("Temperature (C): "); //display it on the monitor 
  15.  Serial.println(TEMP); 
  16.  
  17.  delay(200); //delay between consecutive readings 
  18. }

 

The results of the program can be seen below:

 

A screenshot of the serial monitor.

Botland.store - shop for makers!