The compact DHT11 sensor module is available in a single-row package with four pins, making the interconnection very convenient. Out of the four pins, only three are required (VDD-GND-DATA), and the ...

I’ve tried the DHT11 sensor modules at both Vcc 3.3V and 5.0V, and at both voltages the humidity values are bad. dfrobot has introduced a V2 DHT11 sensor module that changes the 10K pull-up to 4.7K.