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Product specifications
DHT11 is a temperature and humidity sensor on the single chip. The sensor is a low cost basic digital temperature and humidity sensor. To sense humidity and temperature it uses a capacitive humidity sensor and a thermistor respectively. It measures the surrounding environment and gives a digital signal at its data pins. As it does not require any analog pin or data so it?s easy to use but need to be careful with timing to get data.
Specification
Voltage supply: 3-5V
Maximum current during conversion: 2.5mA
Humidity reading: 20-80%
Humidity accuracy: 5%
Temperature reading: 0-50�C
Temperature accuracy: �2%
Sampling rate: 1Hz once every second
Pin Description
Vcc: 3V to 5V
Signal: Data
NC: Not Connected
Gnd: Ground
Application
Automatic temperature control
To measure temperature and humidity
To monitor the environment
Local weather station
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