1# 2 3BTstack allows to implement and use GATT Services in a modular way. 4 5To use an already implemented GATT Service Server, you only have to add it to your application's GATT file with: 6 - `#import <service_name.gatt>` for .gatt files located in *src/ble/gatt-service* 7 - `#import "service_name.gatt"` for .gatt files located in the same folder as your application's .gatt file. 8 9Each service will have an API at *src/ble/gatt-service/service_name_server.h*. To activate it, you need to call *service_name_init(..)*. 10 11Please see the .h file for details. 12