HDC1080 + RAK811

Hello community,

I am trying to connect the Texas HDC1080 to my RAK811.
So far i got nowhere even to a simple response:

Does any of you had any experience with the sensor? So far i tried:

The RUI examples for the I2C devices(Changing the address of the device to my own). I´ll maybe try to go to the arduino version to get a response out of him.