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.

Keeping track of things like the temperature, humidity, and smoke level in your house is important. If you want to make your own system for doing so, Skip to Main Content ...