thank you so much I´m looking for every little hint I can get. I also checked a few things in the meanwhile but there are quite a lot of Information about the module an it´s functions I´m worrying a bit about programming with the open sdk. This is what I have to do right? I was fine with the Nodemcu modules but it seems like I have to reactivate some C++ for this purpose and find some examples I can learn with.
A colleague gave me a shift register for a quick and dirty solution but I´m not very happy with that because there is also an additional power consumption I don´t like.