Datasheet

IDUINO for Maker’s life

www.openplatform.cc

Easy Analog Temperature Sensor(SE026)

1．Introduction

A thermistor is a type of resistor whose resistance is dependent on temperature,

more so than in standard resistors. The word is a portmanteau of thermal and resistor.

Thermistors are widely used as inrush current limiter, temperature sensors (NTC type

typically), self-resetting overcurrent protectors, and self-regulating heating elements.

It’ similar with the Analog Temperature Sensor (ST1147), the difference is that 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

Model No.

NTC-MF52 3950

Temperature Range

-55℃~+125℃

Accuracy

+/- 0.5℃

Pull-up resistor

10KΩ

2.Pinout

Description

OUT

Signal pin

PAGE 1
IDUINO for Maker’s life Easy Analog Temperature Sensor(SE026) 1．Introduction A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors. The word is a portmanteau of thermal and resistor. Thermistors are widely used as inrush current limiter, temperature sensors (NTC type typically), self-resetting overcurrent protectors, and self-regulating heating elements.
PAGE 2
IDUINO for Maker’s life GND VCC Gnd Vcc(reference voltage:5V DC) Temperature convert Formula Here we use Steinhart–Hart equation to calculate the corresponding temperature. The equation is where: T is the temperature (in Kelvins) R is the resistance at T (in ohms) A, B, and C are the Steinhart–Hart coefficients which vary depending on the type and model of thermistor and the temperature range of interest.
PAGE 3
IDUINO for Maker’s life Example code : ******Code begin****** #include double Thermister(int RawADC) { double Temp; Temp = log(((10240000/RawADC) - 10000)); Temp = 1 / (0.001129148 + (0.000234125 + (0.0000000876741 * Temp * Temp ))* Temp ); Temp = Temp - 273.15; return Temp; } void setup() { Serial.begin(9600); } void loop() { Serial.print(Thermister(analogRead(0))); Serial.println("c"); delay(1000); } ******Code End****** www.openplatform.