HUMIDITY SENSOR DHT11 MODULE - PIC,8051,AVR ,USB PROGRAMMER,DEVELOPMENT BOARDS - alselectro

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HUMIDITY SENSOR DHT11 MODULE

HUMIDITY SENSOR DHT11 MODULE

Rs 140.00(GST excl.) Add



DHT11 Relative Humidity- Temperature - Sensor Module For Arduino

Features:

Can detect surrounding environment of the humidity and temperature

Humidity measurement range: 20% ~ 95%
Humidity measurement error: +/- 5%
Temperature measurement range: 0°C ~ 50°C
Temperature measurement error: +/- 2°C
Working voltage 3.3V ~ 5V
Output 2.5mA max current use during conversion (while requesting data)
Good for 20-80% humidity readings with 5% accuracy
Good for 0-50°C temperature readings ±2°C accuracy
No more than 1 Hz sampling rate (once every second)

mode: DIGITAL OUTPUT

PCB size: 3.1 x 1.4cm

      

Pin connections of DHT11 Sensor : PIN1- Vcc         PIN2-DATA- Signal output     PIN3-Not connected    PIN4-GND
Simply ignore pin 3, its not used. Place a 10K resistor between VCC and the data pin, to act as a medium-strength pull up on the data line.

The DHT sensors are made of two parts, a capacitive humidity sensor and a thermistor. There is also a very basic chip inside that does some analog to digital conversion and gives out a digital signal with the temperature and humidity. The digital signal is fairly easy to read using any microcontroller.

 
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