Thanks for the quick reply!
I know th 24LC256 looks strange at the output connection. It's very frustrating but i can't get the connection dot to appear on the grid point. It always keeps jumping between two grid points. I've no idea why, but connection-wise it's okay if i hover over it with my mouse then everything turns yellow.
Do you mean this header: 
I adapted it for the pin spacing of the sensor, do you think that it's a problem that the ring thickness is only 0.3mm?