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Humidity and Temperature DHT11 Module

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Humidity temperature DHT11 ,this is a very popular, ultra low cost digital temperature and humidity sensor.


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Humidity and Temperature DHT11 Module

Humidity temperature DHT11 ,this is a very popular, ultra low cost digital temperature and humidity sensor. It uses a capacitive humidity sensor, and a thermistor to measure the surrounding air temperature. The result is available via a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds. But, for most applications this is not an issue at all.

Humidity temperature DHT11 Sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product (Humidity temperature DHT11) has high reliability and excellent long-term stability. The sensor  includes a resistivity sense of wet components and an NTC temperature measurement devices, and connected with a high-performance 8-bit micro controller Besides operating voltage, you need only one other port to connect to the sensor  module

Humidity temperature DHT11  ,It has a quick response time and comes with an anti-interference ability to reduce noise levels. During our tests, we found that the readings are reasonably accurate. While the first readings aren’t very accurate, the second, third, and subsequent calls showed precise numbers.

Specifications: Humidity temperature DHT11 Sensor

Relative humidity
Resolution: 16Bit
Repeatability: ±1% RH
Accuracy: At 25℃ ±5% RH
Interchangeability: fully interchangeable
Response time: 1 / e (63%) of 25℃ 6s
1m / s air 6s
Hysteresis: <± 0.3% RH
Long-term stability: <± 0.5% RH / yr in

Resolution: 16Bit
Repeatability: ±0.2℃
Range: At 25℃ ±2℃
Response time: 1 / e (63%) 10S

Electrical Characteristics of
Power supply: DC 3.5~5.5V
Supply Current: measurement 0.3mA standby 60μ A
Sampling period: more than 2 seconds

Pin Description of Humidity temperature DHT11 Sensor
1: The VDD power supply 3.5~5.5V DC
2: DATA serial data, a single bus
3, GND ground, the negative power




Humidity and Temperature DHT11

Humidity and Temperature DHT11

Humidity and Temperature DHT11

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