nRF UART app works on android, not on iOS 8.4

[peterh]

My ANT BLE application runs on a custom board with a nRF51422, SD 310 rev 2.0.0

I can use the nRF UART app on an android phone, but on an iPhone with iOS 8.4 I can't even see the device.

I can see the device in the list in the DFU Tool in the nRF Toolbox, but in nRF UART nothing.

Are there any connection/advertising/timeout/... parameters I should be aware off, in order to use iOS for UART?

[peterh]

In summary:

iOS UART needs the advertising packet to work, android does not.

The advertising packet didn't come across for two reasons:

1. services_init() was not called before advertising_init(). It has to be that way around.

2. The advertising packet was not built correctly, the length was too long (>31 bytes). Splitting the packet into an advertising packet and a scan response packet did the trick.

[Hung Bui]

@Peterh: I'm glad that you found the issue. Regarding the reason #1, it was because sd_ble_uuid_vs_add() should be called (as in ble_nus_init() ) to add the NUS base UUID before you can use m_adv_uuids in advertising_init().