HUMIDITY AND TEMPERATURE SENSOR DHT20

All pictures are for illustrative purposes only.

PID# 160519

12,00 CA$
Free shipping: On orders over $120 within BC
Variants:
DHT11
DHT20
DHT22
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Description

The DHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22.

This little sensor looks an awful lot like the popular DHT11/DHT22 temperature and humidity sensors, but unlike classic DHT sensors, it has an I²C interface! That's right, you do not need to use a bit-bang timing-specific protocol to talk to the DHT20, it uses plain-old-I²C. And, you can power it with anything from 2.5V to 5.5V so it's good with 3V or 5V microcontrollers. Whew, that makes things a little easier, doesn't it?

This sensor has a typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C. There is only one I2C address so it's not a good option when you need multiple humidity sensors.

That said, for maker and IoT projects? You can't beat the simplicity and price!

Technical Details:

  • I2C address 0x38 (cannot be changed)
  • 2.5V to 5.5V power and logic level
  • Pin order from Left to Right: Power, SDA, Ground, SCL
  • Usage Humidity: 0... 100%RH
  • Usage Temperature: -40ºC – 80ºC
  • Typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C
  • Overall accuracy of ±3% relative humidity, and ±0.5 °C

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