Lesson 28 Photoresistor
Introduction
The photoresistor module is a resistor module designed based on the principle of
photoconductive effect of semiconductors, of which the resistance varies with the
intensity of incident light. The resistance of the photoresistor we use decreases with
stronger incident light and increases with weaker light. In experiments and daily light,
photoresistors are usually used for detecting light intensity.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * ADC0832 Module
- 1 * Photoresistor Module
- 2 * 3-Pin Wires
- 1 * 5-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
Pin definition:
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