DHT11 is composed of resistive humidity sensing device and NTC coefficient temperature sensing device, and has the function of calibrating digital signal output. Using a single bus serial interface, the output data a total of 5 bytes, respectively: Humidity integer, humidity digit, temperature integer, temperature digit and checksum, where the checksum is the low 8-bit binary complement of the result of adding each byte of data. If the checksum calculation result does not match the last byte of data sent by DHT11, the data may be wrong and need to be re-obtained.
Application scene: This module can be used for weather station, temperature and humidity regulator, etc.
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Shipping Instructions
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