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Easy LM35 Temperature Sensor(SE030)
1．Introduction
This module is temperature sensor with chip LM35, It’s different from other NTCMF523950 temperature sensor(ST1147) or DS18B20 temperature sensor(SE029). This
module has one indicator light, which would be on when this module’s voltage signal
is changed. And, this module has integrated 3-pin terminal, which can be simply and
tidily connected with Arduino sensor expansion board, like the following picture:
The Module’s feature as below:
Feature
Value
Chip
Lm35
Temperature Range
-55℃~+150℃
Accuracy
+/- 0.5℃
Voltage
5V DC
Size
27*20*10mm
2.Pinout
Pin
Description
DAT
Signal pin
VCC
Power(reference voltage:5V DC)
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GND
Ground
3 Example
This is a simple code for the LM35 temperature module, Connection as below:
Example code :
******Code begin******
float temp = 0;
void setup() {
Serial.begin(115200);
Serial.println(F("reading temperature begin. \n"));
}
void loop() {
static unsigned long sensortStamp = 0;
if(millis() - sensortStamp > 100){
sensortStamp = millis();
int reading = analogRead(0);
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temp = reading *0.0048828125*100;
Serial.print(F("Real Time Temp: "));
Serial.println(temp);
}
}
******Code End******
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