DFRobot LM35 Linear Temperature Sensor (SKU:DFR0023)
DFRobot LM35 Linear Temperature Sensor
Contents
1 Introduction
2 Specification
3 Tutorial
3.1 Connection Diagram
3.2 Sample Code1
3.3 Sample Code 2
4 Trouble shooting
5 More
Introduction
The
DFRobot LM35 Linear Temperature Sensor
is based on the semiconductor LM35 temperature
sensor. The DFRobot LM35 Linear Temperature Sensor can be used to detect ambient air
temperature. This sensor is produced by National Semiconductor Corporation and offers a functional
range between 0 degree Celsius to 100 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.
Specification
Based on the semiconductor LM35 temperature sensor
Can be used to detect ambient air temperature
Sensitivity: 10mV per degree Celcius
Functional range: 0 degree Celsius to 100 degree Celsius
Tutorial
Connection Diagram
Sample Code1
Library installation
void setup()
{
Serial.begin(9600);//Set Baud Rate to 9600 bps
}
void loop()
{
int val;
int dat;
val=analogRead(0);//Connect LM35 on Analog 0
dat=(500 * val) /1024;;
Serial.print("Temp:"); //Display the temperature on Serial monitor
Serial.print(dat);
Serial.println("C");
delay(500);
}
Sample Code 2
float tempC;
int reading;
int tempPin = 0;
void setup()
{
Serial.begin(9600);
analogReference(INTERNAL);
}
void loop()
{
reading = analogRead(tempPin);
tempC = reading / 9.31;
Serial.print("Temp:"); //Display the temperature on Serial monitor
Serial.print(tempC);
Serial.println("C");
delay(500);
}
Trouble shooting
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