DHT11 digital temperature and humidity sensor is a calibrated digital signal output temperature and humidity combined sensor, which utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability.
The DHT sensors are made of two parts, a capacitive humidity sensor and a thermistor.And with a high-performance 8-bit microcontroller connected.
Small size & low consumption & long transmission distance enable DHT11 to be suited in all kinds of harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
The sensor is a calibrated temperature and humidity combined sensor and doesn’t require extra components so you can both measure relative humidity and temperature.
The digital signal is fairly easy to read using any microcontroller.
This sensor module utilizes DHT11 as the sensitive component and has a bypass capacitor and a pull-up resistor on-board. The DHT11 is a pre-calibrated digital output temperature and humidity sensor. The single-wire wiring scheme makes it easy to be integrated to other applications. The simple communication protocol greatly reduces the programming effort required.
Power supply voltage: 3.3~5.5V DC
Output: the single bus digital signal
Measuring range: 20-90%RH humidity, temperature 0~50°
The measurement accuracy of +-5%RH: humidity, temperature +-2 °
Resolution: 1%RH humidity, temperature 1 °
Exchangeability: fully interchangeable
Long term stability: < ± 1%RH
Size: 28 * 12 * 7.2mm
1.VCC:External 3.3 V-5 V
3.DO:Small board switch digital output interface, connect the microcontroller IO port
1 X DHT11 Temperature and Humidity Sensor； 1 X Dupont Cable