DHT11 is a Temperature and humidity sensor which as the name implies is used to measure the atmospheric temperature and humidity in a particular environment or in a confined closed space. The sensor ...

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.

The DHT11, 21, 22, 33 and 44 are relative inexpensive sensors for measuring temperature and humidity. This library can be used for reading both values from these DHT sensors. The DHT11 only returns ...

• Accuracy: The DHT11 sensor provides a precision of ±2% for humidity and ±0.5°C for temperature. • Real-time Data: Temperature and humidity values are updated every two seconds, demonstrating ...

The first step towards optimizing these two ambient parameters is their reliable measurement. This project describes an inexpensive technique of using the DHT11 sensor for measuring temperature and ...