how to change the service name?

RE: how to change the service name?

MartinBL — Fri, 09 Oct 2015 09:32:28 GMT

Is this passkey issue related to your initial question? If not I suggest you create another post.

RE: how to change the service name?

Bjørn Inge — Thu, 08 Oct 2015 16:07:32 GMT

Hi,
it is possible to customize how names are shown in service discovery in Master Control Panel for Windows. You can do this by editing the file uuid_definitions.txt in the application folder (C:\Program Files (x86)\Nordic Semiconductor\Master Control Panel[version]\uuid_definitions.txt).

RE: how to change the service name?

MARTIN FR — Thu, 08 Oct 2015 14:02:25 GMT

whenever i click the bonding options it is asking for the static passkey because i set the passkey but i would like to know how the static passkey works because i set the printf statements in the passkey declaration but it is not functioning as expected the printf statements are not visible int eh debugger terminal

// Add static pin:                                      
    
uint8_t passkey[] = STATIC_PASSKEY;
m_static_pin_option.gap_opt.passkey.p_passkey = passkey;

err_code =  sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &m_static_pin_option);
APP_ERROR_CHECK(err_code);

RE: how to change the service name?

Aleksander Nowakowski — Thu, 08 Oct 2015 13:43:49 GMT

The procedure of adapting a service is very long, requires a lot of people from different companies and you don't do it for a custom service, rather for a use case, like battery service etc. But you don't need to do so. A service name is something that users don't see, they event don't care. You are just using the UUID. If you develop an app that works with your device you use the same UUID on both sides, that's how app can 'understand' the device. A name in the nRF MCP is just for making easier working with some common services.

Also, what do you mean by saying that you have named your service Buzzer service etc. If you have written such in the code of your application on nRF, as a comment or a constant name, this does not mean this information is propagated to other devices, for example the phone. It's just a name you have there. You may rename the service, like I've shown in the MCP

RE: how to change the service name?

MARTIN FR — Thu, 08 Oct 2015 13:36:56 GMT

in general i have to register with BLE SIG group in order to lake my service become globa right?

RE: how to change the service name?

Aleksander Nowakowski — Thu, 08 Oct 2015 13:20:22 GMT

Hi,

Let me answer your question. There is a database in the nRF MCP app with all (almost all?) services, characteristics and descriptors assigned by Bluetooth SIG (developer.bluetooth.org/.../ServicesHome.aspx) + some with open specification, like Nordic UART service, DFU, Eddystone Beacon Config service etc. If the UUID of a service/char/descr matches the one I have in the database locally in the app I display the name of it.

If I don't have in the database I write Unknown Service/Characteristic/Descriptor. One can easily rename such item by long pressing it and selecting EDIT option in the top menu. There you may provide your own name that will be stored locally on your device. You should do this for each Android device you use as this is not synchronized with any server. You may only rename an unknown service/char/descr. If you long press a known item there will be no EDIT icon but you still can for example copy its UUID etc.

I guess this is the solution the guys from GitHub made, that's why they had LEDBUTTON visible there.

Hope I helped, Aleksander

RE: how to change the service name?

MARTIN FR — Thu, 08 Oct 2015 10:20:15 GMT

so if i want to show this as buzzer service i should subscribe to BLE SIG?

and i have one question i saw in github they made one custom service like LEDBUTTON but it is visible in MCP

RE: how to change the service name?

Wojtek — Thu, 08 Oct 2015 10:17:08 GMT

"buzzer service" is something created by you, it is not included in bluetooth sig specifications so it is not possible to make it visible named as buzzer service in master control panel.

RE: how to change the service name?

MARTIN FR — Thu, 08 Oct 2015 10:01:34 GMT

i uploaded my screenshot please tell me where i went wrong because i cant able to find that? i want to change unknown service as buzzer service

RE: how to change the service name?

MartinBL — Thu, 08 Oct 2015 08:29:47 GMT

You will have to edit your initial post. Then you have the option to add an image. You can either browse to an image file that you have stored on your computer or you can link to an image on the internett.

RE: how to change the service name?

MARTIN FR — Wed, 07 Oct 2015 12:49:53 GMT

can you tell me how can i add the screenshot of my master terminal

RE: how to change the service name?

MARTIN FR — Thu, 24 Sep 2015 13:42:38 GMT

Heart Rate is the predefined service in BLE SIG similarly for example if i want to create custom service a BUZZER BEEP as a service for that i have to become a memeber of SIG then only i can create a customer service with the desired name?

RE: how to change the service name?

MARTIN FR — Thu, 24 Sep 2015 13:17:06 GMT

i have created custom GATT profiles and i named the service as buzzer and characteristic as buzzer setup but after the compilation it is showing me int he mater control panel Unknown service and unkown characteristics and i dont know why? can you suggest me how can i see buzzer service as the service name and buzzer characteristics as the characteristic name

RE: how to change the service name?

MartinBL — Thu, 24 Sep 2015 13:06:54 GMT

If I understand you correctly you want to change the names that show up in the Service discovery window in MCP.

The names I have pointed to in the image above cannot be changed to whatever you like. Some services are predefined by Bluetooth SIG. See for example this list. These predefined services are the only services that will show up with a name in MCP.

A custom service will always show up like in the image above. Reading something like:

PrimaryService, Value: 23-D1-13-EF-12-23-45-56-78-89...........

What you can do however, is to add a User Description Characteristic as shown highlighted in the image above. Then you can include any name you want. Have a look at this thread to learn more about how to do it.

If you want to change the advertising name as shown in the image below I suggest that you read this tutorial.

RE: how to change the service name?

MARTIN FR — Thu, 24 Sep 2015 12:41:40 GMT

i have created 128bit uuid custom service and i defined the service name as Buzzer service nutafter the compilation the master panel showing unknown service as the service name i don't know why can you suggest me what went wrong? i want to see buzzer service in the master control panel

RE: how to change the service name?

Wojtek — Thu, 24 Sep 2015 11:22:45 GMT

Name of service is not something that you can set AFAIK. Some services are recognized (ex. HEART_RATE_SERVICE) because it has bluetooth SIG defined UUID.

RE: how to change the service name?

MartinBL — Thu, 24 Sep 2015 11:19:29 GMT

Hi. Can you show us a screenshot of your Master control panel or elaborate a bit more on what exactly it is you want to achieve? Is it the advertised name that you want to change? Then you can have a look at this tutorial: BLE Advertising, a beginner's tutorial.