Description
Durable module for measuring temperature and humidity
For ESP, Arduino and Raspberry Ideal for weather stations
GY-21 is a reliable and durable module for detecting temperature and humidity values.
Thanks to I2C interface, the sensor is compatible with most 3.3V and 5V microcontrollers like Atmega328p, ESP and Raspberry and programming is convenient to implement.
The sensor breakout is equipped with the original HTU21D chip and is a real alternative to the well-known DHT22.
Widely used module, popular in the community.
Finds use in many weather stations
Typical measurement accuracy temperature: +/-1°C deviation between -30°C and 90°C
Typical measurement accuracy humidity: +/-2% RL between 5% and 95% RL
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