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June 23, 2011 AT 12:00 am

TUTORIAL! Sensor tutorials – DHT11/DHT21/DHT22 low cost temperature/humidity sensors

Dhtsensors T

This tutorial covers the low cost DHT temperature & humidity sensors. These sensors are very basic and slow, but are great for hobbyists who want to do some basic data logging. 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 spits out a digital signal with the temperature and humidity. The digital signal is fairly easy to read using any microcontroller.

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1 Comment

  1. Ow now it does! thanks!

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