Instructions

IDUINO for maker’s life
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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.
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
Pin
Description
“S”
Singal pin
“-”
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. (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).