connected to NGW and up and running

At last everything on the i2c side works as it should be. Special thanks to Manes for his effort in replacing the components. In fact we had only one error on the board which was a wrong position of the jumper for the external extender pull up, introduced from the start. The rest of our problems was pure invoked by causality reasons. I started a bit of a panic and did some wrong measurements on the board that resulted in fucking up almost all the i2c chips. It was as simple as that. I tested quickly the inputs and outputs already and seems to be ok. In depth testing will be for this coming week. I will post a full test report here at my blog later.

We are back into business finally !