About the Module
DHT11 is a temperature and humidity sensor that uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).
The DHT11 Humidity and Temperature Sensor consists of 3 main components. A resistive type humidity sensor, an NTC (negative temperature coefficient) thermistor (to measure the temperature) and an 8-bit microcontroller, which converts the analog signals from both the sensors and send out a single digital signal.
Setting up the sensor:
+ Pin is connected with the female jumper wire and the male end to the 5V power supply on the Arduino board.Â
– Pin is connected with the female jumper wire and the male end to the ground on the Arduino board.
OUT Pin is connected with the female jumper wire and the male end to the digital pin.
