@Marcin-Debowski we haven't experimented with reading the DHT sensors directly using the Omega since they have their own timing sensitive protocol. Because the Omega runs Linux and is a soft real-time operating system, any one of the running processes could interrupt your code and mess up the timing of your pulses.

We have, however, used the microcontroller on the Arduino Dock as a coprocessor to read the sensor and report the reading via serial UART to the Omega. Check out this project for details: https://docs.onion.io/omega2-project-book-vol1/weather-station.html