Thermistor Sensor Module Interface With Arduino

by mybotic in Circuits > Sensors

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Thermistor Sensor Module Interface With Arduino

Thermistor.jpg

This tutorial teaches the basics on using the Thermistor Sensor Module.

Introduction

Description:

Thermistor Sensor Module is used to sense temperature and convert it into output signals. It is associated with both analog output pin and digital output pin labelled as AO and DO respectively on the board. Thermistor Sensor Module is made of semiconductor materials. Basically thermistor sensors are mostly Negative Temperature Coefficient (NTC), which means NTC thermistors will have their electrical resistance decreased when subjected to an increase in body temperature. This module has a potentiometer knob that can be adjusted to change the sensitivity of thermistor towards temperature.

Specifications:

  • Input Voltage: DC 3.3V to 5V
  • Output: Analog and Digital
  • Sensitivity Adjustable
  • Size: 32mm x 14mm x 5mm

Pin Definition

pin definition.PNG
functions of pins.PNG

Sample Hardware Installation

sample hardware installation.PNG

Sample Source Code

To get the result, please download the sample source code attached below and upload it into Arduino.

Downloads

thermistor_coding.zip

Ways to Open Serial Monitor

sm1.PNG
sm2.PNG

Result (1)

when thermistor approaches something hot.PNG

The readings shown on Serial Monitor when thermistor approaches something warm.

Result (2)

thermistor is left to cool.PNG

The readings shown on Serial Monitor when thermistor is left in a room.