So first Design Decisions where made. I happily found an NFC Chip the NHS3152, that has an integrated ARM M0+. That saves a lot off Space on the Board, and the Controller has enough Power for all Kinds of Application. That's great since the size off the Board is Critical. The Application for the first Prototype will probably be the recording of the Activity off a Neuron. I think that is quit ambitious but something that would be great for an implanted device.