User manual

www.sainsmart.com

Out can be seen from experimental cartridge of the temperature sensor, temperature sensor side

is flat, and the other side is semicircular. Flat face of our own, the leftmost VCC pin (connected to

+5 v), the middle of the GND pin VOUT (voltage value output pin, then the analog pins on the

board), and the rightmost pin (connected board GND). Three pins, respectively, then you can use.

Temperature alarm experiment

Experiment component

 LM35 temperature sensor module*1

 Breadboard & jumper wire few

Connection

First ready experimental board; Follow the LM35 temperature sensor connection connected to

VOUT is connected to an analog 0. Such temperature alarm experimental circuit connected.

Experimental principle

LM35 temperature sensor works shows that the temperature is increased by 1 ° C vout the

mouth output voltage increases 10MV.

According to this principle procedures in real time reading out the analog voltage value of 0, since

the analog port reads out a voltage value of 0 to 1023, i.e. 0V corresponding 0,5 V corresponds to

1023.

Application, we only need to LM35 module, analog interface, the read analog value is converted

to the actual temperature.

Example code

int potPin = 0 ;//define pin0 connect with LM35

void setup()