BT SIG service for custom_ble_service_example, not advertising

[Simon]

For the custom_ble_service_example, trying to change the service used in the example to a Bluetooth SIG service.

Original is:
CUSTOM_SERVICE_UUID_BASE f364adc9-b000-4042-ba50-05ca45bf8abc
#define CUSTOM_SERVICE_UUID_BASE {0xBC, 0x8A, 0xBF, 0x45, 0xCA, 0x05, 0x50, 0xBA, \
0x40, 0x42, 0xB0, 0x00, 0xC9, 0xAD, 0x64, 0xF3}
#define CUSTOM_SERVICE_UUID 0x1400
#define CUSTOM_VALUE_CHAR_UUID 0x1401

Change To Bluetooth SIG environmental service:
CUSTOM_SERVICE_UUID_BASE 00000000-0000-1000-8000-00805f9b34fb
#define CUSTOM_SERVICE_UUID_BASE {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, \
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
#define CUSTOM_SERVICE_UUID 0x181A
#define CUSTOM_VALUE_CHAR_UUID 0x2A6E

Using the same RAM settings as Orginal:
RAM_START=0x20002220
RAM_SIZE=0xdde0

The Original advertises ok, but the SIG version shows an error in RTT:
0> <error> app: ERROR 7 [NRF_ERROR_INVALID_PARAM] at C:\Files\Nordic\nRF5_SDK_15.0.0_a53641a\examples\ble_peripheral\custom_ble_service_example-1\main.c:779
0> PC at: 0x0002F18D
0> <error> app: End of error report

where main.c:779 is:
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);

If I just change the SIG UUID pair of "0x00, 0x80" to Original "0x50, 0xBA", then the SIG version will advertise and show Unknown Service.

What piece am I missing for the SIG service to advertise on android nrf connect as Environmental Service, Temperature using the custom_ble_service_example?

-thank-you.

[Edvin]

Hello,

I think the issue is that you try to add a service that is defined by Bluetooth SIG with a custom service UUID. Look in one of the examples using a SIG service (such as the ble_app_hrs example from the SDK) to see how the heart rate service is added.

 

Best regards,

Edvin

[Simon]

This SIG service worked fine for the example in sdk 13.1.

Why not sdk 15.0?

For ble_app_hrs, is the intention to add Environmental Sensing to the sdk_config,h?

I only see Health Thermometer in sdk_config.

[Edvin]

Unfortunately, in some of the examples, the sdk_config.h files are quite stripped. Try to use the sdk_config.h file from the ble_app_template example (just copy and replace it), and then enable all the things that was enabled in the original example, in addition to what you want to enable that is not currently there.

 

BR,

Edvin

[Simon]

The template and example are pretty much the same sdk_config.h file at about 12150 lines each.

Is there another config file with the Environmental Sensing service?

[Edvin]

Do you have #define BLE_HRS_ENABLED 1 in your sdk_config.h

 

Best regards,

Edvin

[Edvin]

If you do, I am not quite sure what the issue is. Can you send the project? I understand that you have followed the guide, but then I don't have to do all the same work.

 

Best regards,

Edvin

[Simon]

sdk 15.0, SES, objective: Environmental Service, Temperature

custom_ble_service_example-1.zip

[Edvin]

Hello,

I found out why it didn't work. You need to change the

static ble_uuid_t m_adv_uuids[] 

at the top of your main.c file.

 

When you want to use any of Bluetooth SIG UUIDs, you have to use BLE_UUID_TYPE_BLE instead of BLE_UUID_TYPE_VENDOR_BEGIN.

 

So the ble_cus_init() function uses the m_adv_uuids[] from line 132 in your main.c file.

 

Change this, and you should be able to advertise.

 

Best regards,

Edvin

[Simon]

the change to BLE_UUID_TYPE_BLE enabled advertising and env service, ...-thank-you.