The DHT11 is a basic, low cost digital temperature and humidity sensor. (How to use DHT11)This is a single wire digital humidity and temperature sensor, which provides humidity and temperature values serially with one-wire protocol.This sensor provides relative humidity value in percentage (20 to 90% RH) and temperature values in degree Celsius (0 to 50 °C).This sensor uses resistive humidity measurement component, and NTC temperature measurement component.Specification of the DHT11 sensorPower supply: 3.3 to 5V DCCurrent consumption: max 2.5mAOperating range: 20-80% RH, 0-50°CHumidity measurement range: 20-90% RHHumidity measurement accuracy: ±5% RHTemperature measurement range: 0-50°CTemperature measurement accuracy: ±2°CResponse time: 1sSampling rate: 1Hz (1 sample per second)Data output format: single-bus digital signalData transmission distance: 20-30m (at open air)Dimensions: 15mm x 12mm x 5.5mmWeight: 2.5gDigital signal transmission protocol: 1 start signal 40bit data 1 checksum
