I'm currently writing my thesis, and my goal is to establish a network protocol like IP. We need to transmit about 200kB of data between 2 or more nodes once every 10-30 minutes.
My current approach is to use WriteRequests and Notifications/Indications based on GATT characteristics. Basicly a custom NUS service with a application protocol on top of it for fragmentation, reliable transmission and so on.
Is it possible to completly skip GAT / GATT, designing a custom protocol directly on top of the logical link layer L2CAP?
We are using custom hardware with NRF51422 chips on it.
Thanks!