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DHT22 temperature-humidity sensor + extras

SKU: ZO-1133
Model/MPN:
Availability: 8
44.00AED
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DHT22 temperature-humidity sensor + extras

it is a sensor that works well with temperature and humidity, yet still is available in a low suitable price. It measures the air through a thermistor and a capacitive humidity sensor.

It’s very user friendly, yet you have to be careful in the timing for grabbing data.

Note that: New data can be get every 2 seconds. Instructions: imply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground
 

We have written an Arduino library with example code

Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive

Comes with a 4.7K - 10K resistor, which you will want to use as a pullup from the data pin to VCC.

Technical Details

  • Low cost
  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • Good for 0-100% humidity readings with 2-5% accuracy
  • Good for -40 to 80°C temperature readings ±0.5°C accuracy
  • No more than 0.5 Hz sampling rate (once every 2 seconds)
  • Body size 27mm x 59mm x 13.5mm (1.05" x 2.32" x 0.53")
  • 4 pins, 0.1" spacing

Downloads:

DHT22 datasheet

Arduino library and example code

Detailed usage tutorial

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