DHT11 Temperature and Humidity Sensor Module

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DHT-11 temperature and humidity sensor is a digital temperature and humidity
sensor. This DHT11 Digital Relative Humidity & Temperature Sensor Module is pre-calibrated with
resistive sense technology coupled with NTC thermistor, for the precise reading of the relative Humidity
and surrounding temperature DHT 11 break-out board is a very popular, low-cost sensor from Losing,
the breakout provides easy installation of the DHT11 sensor module.

 

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Description

Description:

DHT-11 temperature and humidity sensor is a digital temperature and humidity
sensor. This DHT11 Digital Relative Humidity & Temperature Sensor Module is pre-calibrated with
resistive sense technology coupled with NTC thermistor, for the precise reading of the relative Humidity
and surrounding temperature DHT 11 break-out board is a very popular, low-cost sensor from Losing,
the breakout provides easy installation of the DHT11 sensor module.

The board is also equipped with high- performance 8-Bit microcontroller which is connected to
the DHT11 sensor module. The output of the DHT11 is in the form of a digital signal on a single
data pin. The sensing update frequency is to be measured at every 2sec (0.5Hz).

The complete arrangement makes the device an ideal sensing setup to be hooked up directly to any
kind of microcontroller boards like Arduino’s. The board is extra featured with an onboard LED, a bypass
capacitor between Vcc and Gnd, and a pull-up resistor across the data line and Vcc.

The DHT-11 Digital Temperature And Humidity Sensor is a basic, ultra low-cost digital temperature and
humidity sensor. It 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).

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, so in your code please use
sensor reading interval at 2 seconds or more. Compared to the DHT22, this sensor is less precise,
less accurate, and works in a smaller range of temperature/humidity.

But despite its disadvantages over DHT22, it is a smaller and less expensive sensor for temperature and
humidity measurement.

Applications:
HVAC, Testing and inspection equipment, Automotive, Datalogger, Consumer goods, Automatic
control, Weather station, Home appliances, Humidity regulator, Medical, Dehumidifier, etc.

Features Of DHT11:
1. Low power consumption.
2. DHT11 sensor adopts
3. The module can detect the surrounding environment of the humidity and temperature
4. High reliability and excellent long-term stability
5. The output from the digital output

Specifications Of DHT11 Sensor:
1. Humidity Measuring Range(%): 20 to 90
2. Temperature Measuring Range(°C): 0 to +50
3. Humidity Measurement Accuracy(%): ±5.0
4. Temperature Measurement Accuracy(°C): ±2.0
5. Response Time(s): <5
6. Supply Voltage (V): 5
7. Breadboard Size(mm): 19×17 (LxW)

 

Package Includes:
1 x DHT11 Digital Relative Humidity & Temperature Sensor Module.

 

Additional information

Weight 30 g
Dimensions 3 × 3 × 2 cm

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