which example to use for a Peripheral Server GATT ?

[dyvacle]

In SDK5, I found 2 examples : a server GATT in Central & a client GATT in Peripheral...

But in my case my device (nrf52840 board) needs to be :

• a peripheral : slave IoT device advertising and notifying but not connecting
• server Gatt : sending sensors data to the gateway as central (connecting) and client Gatt (write/read data to/from device)

If I took the server gatt example in central, do I need to transform it for running as server gatt peripheral ?

thks

[dyvacle]

I think the "GATT Service Client Example Application" in examples\ble_peripheral\ble_app_gatts_c is a Peripheral / slave because it's doing advertising_start() in main(). Then, it's doing a ble_db_discovery_start() to discover peer's services, which means that is a Client GATT to get the server attributes uuid table from the remote peer or not ?

[Jared]

Hi,

dyvacle said:

If I took the server gatt example in central, do I need to transform it for running as server gatt peripheral ?

Yes, as the central and peripheral are the GAP roles of the device, while server and client is the GATT roles of the device. Better explained in this thread.

regards

Jared

[dyvacle]

Ok you confirm that I thought.

Is it easier to start from ble_app_gatts_c (peripheral) and change gatt service to server or to start from ble_app_gatts and change the GAP to peripheral ?

[Jared]

I think it would be easier to transform the GAP role than the GATT role :)