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.

Arduino Board: Serves as the central control unit to process sensor data. DHT11 Sensor: A compact and affordable sensor for measuring temperature (in Celsius) and humidity (as a percentage).

This project demonstrates how to interface a DHT11 temperature and humidity sensor with an ESP8266. The code reads the temperature and humidity from the sensor and displays the data on the Serial ...

This sensor system consists several components those are packed into a single small box, namely: a Zigbee communication module, STM32L100 microcontroller, DHT11 temperature sensor, BL-5C rechargeable ...