Lesson 20 Temperature & Humidity Sensor - DHT-11
Introduction
DHT11 is a composite digital thermal sensor that integrates temperature and humidity
detection. It can convert the temperature and humidity analog values into digital values
via corresponding sensitive components and built-in circuits, which can be directly read
by computer or other data collecting devices.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * DHT-11 Sensor Module
- 1 * 3-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
Pin definition:
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