Datasheet

IDUINO for Maker’s life

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(SE017)Digital Temperature Sensor

1．Introduction

This module has both analog signal output pin and digital signal output pin, which

is different from analog temperature sensor(module33) and other temperature sensor

module. 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.

The Module’s feature as below:

Feature

Value

Model No.

NTC-MF52 3950

Temperature Range

-55℃~+125℃

Accuracy

+/- 0.5℃

2.Pinout

Description

Analog signal output pin

Digital signal output pin

Gnd

“+”

Vcc(reference voltage:5V DC)

Temperature convert Formula

Here we use Steinhart–Hart equation to calculate the corresponding temperature.

The equation is

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IDUINO for Maker’s life (SE017)Digital Temperature Sensor 1．Introduction This module has both analog signal output pin and digital signal output pin, which is different from analog temperature sensor(module33) and other temperature sensor module. 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.
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IDUINO for Maker’s life 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. (The most general form of the applied equation contains a [ln(R)]^2 term, but this is frequently neglected because it is typically much smaller than the other coefficients). Note: For this module, the recommended coefficients of A,B,C are A equals 0.
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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.