Inserting a custom service/characteristic into Central/Peripheral example

RE: Inserting a custom service/characteristic into Central/Peripheral example

RK — Thu, 16 Jun 2016 08:21:12 GMT

Yes I was going to point out the handle invalid thing however when I checked the function it seemed to say you could use it and it would add to the previous service. Anyway I figured that was the call probably failing.

3401 - just type 0x3401 into the search box at the top.

RE: Inserting a custom service/characteristic into Central/Peripheral example

Sensors — Thu, 16 Jun 2016 08:17:24 GMT

I totally hadn't realised I missed that, thanks for pointing it out.

I realised as I was examining it that it was passing a BLE_GATT_HANDLE_INVALID rather than the service handle, which seemed strange. I changed it to m_core_service.service_handle and it seems to work now.

There seems to be a new issue though with connecting to it via the MCP app, and it's throwing a 0x00003401 error. I've seen the same behaviour when I start the peripheral before the nrf51 central too. I'll make a new question for that though.

RE: Inserting a custom service/characteristic into Central/Peripheral example

RK — Thu, 16 Jun 2016 00:08:45 GMT

err_code = sd_ble_gatts_characteristic_add(BLE_GATT_HANDLE_INVALID,
                                           &char_md,
                                           &attr,
                                           &m_core_service.rh_handles);

you don't check the err_code from that call - did it actually succeed, add the characteristic and fill in the handles, because those are the handles you later use in the HVX call.