@tomas_hora Thanks for the replay. what do you mean exactly with this PULL_UP transistor by the SW before?
It is very new form me the module.
I need to make 10 projects with the module.
Yes i use Windows IOT .
I try to read I01GPIO04 Digital Input. I think pin7.
But now result.
I use Windows.Devices.Gpio with c#.
It is the first time i use this and the card.
Thanks for the solution.
Do i need to install something on the raspberry?
I use IOT, but i have now connection with the card.
I use a raspberry and module Unipi 1.
How can i control the relay in a C# project (visual studio)?