Important: Place a 10kΩ pull-up resistor between VCC (Pin 1) and DATA (Pin 2). Without it, the sensor will give incorrect or no readings. This is only if you are not using a DHT22 module Temperature — ...
You can use the DHT22 (or AM2302) humidity/temperature sensor and the Arduino UNO board to read data and print it out to the serial monitor or to display it on an LCD ...
Read environmental data using a DHT22 sensor, display the readings on an LCD, and enable remote data access via SMS using a GSM module. The DHT22 sensor is connected to digital pin 2 of the Arduino.
📖 Overview The DHT22 (AM2302) is a popular digital sensor used to measure temperature and humidity with high precision. It communicates using a single-wire digital protocol, making it simple to ...
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