Lesson 29 Thermistor
Introduction
Thermistors can be divided into two types by temperature coefficient: positive
temperature coefficient (PTC) and negative temperature coefficient (NTC). The typical
feature of a thermistor is sensitive to temperature ā its resistance varies with ambient
temperature changes. For PTC thermistor, when the temperature gets high, its resistance
increases; for NTC thermistor, the case is the opposite. The thermistor we use is an NTC
one.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * ADC0832 Module
- 1 * Thermistor Module
- 2 * 3-Pin Wires
- 1 * 5-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
Pin definition:
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