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Lesson 22 Humiture Sensor
Introduction
The digital temperature and humidity sensor DHT11 is a composite sensor that contains a
calibrated digital signal output of temperature and humidity. The technology of a dedicated
digital modules collection and the temperature and humidity sensing technology are
applied to ensure that the product has high reliability and excellent long-term stability.
The sensor includes a resistive sense of wet component and an NTC temperature
measurement device, and is connected with a high-performance 8-bit microcontroller.
Components
- 1 * SunFounder Uno board
- 1 * USB data cable
- 1 * Humiture sensor module
- 1 * LCD1602
- 1 * Potentiometer
- Jumper wires
Experimental Principle
Only three pins are available for use: VCC, GND, and DATA. The communication process
begins with the DATA line sending start signals to DHT11, and DHT11 receives the signals and
SunFounder