View source for LM35 Analog Temperature Sensor Module

==Introduction==

[[File:LM-35.jpg]]

The Arduino LM35 Linear Temperature Sensor module is based on the 

semiconductor LM35 temperature sensor. The LM35 Linear Temperature Sensor 

module can be used to detect ambient air temperature. This sensor is 

produced by National Semiconductor Corporation and offers a functional 

range between -40 degree Celsius to 150 degree Celsius. Sensitivity is 

10mV per degree Celsius. The output voltage is proportional to the 

temperature.

It is commonly used as a temperature measurement sensors. It includes 

thermocouples, platinum resistance, thermal resistance and temperature 

semiconductor chips, which commonly used in high temperature measurement 

thermocouples. Platinum resistance temperature used in the measurement of 

800 degrees Celsius, while the thermal resistance and semiconductor 

temperature sensor suitable for measuring the temperature of 100-200 

degrees or below, in which the application of a simple semiconductor 

temperature sensor has good linearity and high sensitivity. The LM35 

linear temperature sensor and sensor-specific expansion of Arduino board, 

in combination, can be very easy to achieve

==Features==
*Based on the semiconductor LM35 temperature sensor
*Can be used to detect ambient air temperature

==Specification==
*Type: Analog
*Sensitivity: 10mV per degree Celcius
*Functional range: -40 degree Celsius to 150 degree Celsius

==Usage==
[[File:LM-35 PIN.jpg]]
[[File:LM-35 wiring.jpg]]

==Example code==
 int potPin = 0;                    
 float temperature = 0;              
 long val=0;                     
 void setup()
 {
 Serial.begin(9600);
 }
 
 void loop ()                     
 {
    val=analogRead(potPin);
    temperature = (val*0.0048828125*100);         
    Serial.print("Tep=  ");
    Serial.print(temperature);
    Serial.println(" C");
    delay(500);
  }
==How to buy ==
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