RE: BLE Advertisement and UUIDs

Justin — Thu, 05 Mar 2020 20:47:30 GMT

Thanks Joakim for the information. This answers my query.

RE: BLE Advertisement and UUIDs

Joakim Jakobsen — Thu, 05 Mar 2020 10:16:13 GMT

Hi.

1.
It's not required to advertise the UUID. The service and characteristics will be discovered during service discovery. So you can remove the UUID from the advertising packet, if that is what you want.

2.
I don't know what you mean by change the number. Are you referring to the Nordic UART UUID?

If you want to change the UUID, you are welcome to do so. It is also recommended to use your own UUID for end products.
The idea of the 128-bit UUID is that everyone can easily generate their own, so as not to mix up your product with all the Nordic kits running the UART example.

This is why there is no official UART service in BLE, since the Bluetooth SIG doesn't want a load of different devices doing wildly different things using the exact same profile.
Generating your own UUID at least is very straight forward :)
https://www.uuidgenerator.net/

3.
I don't see any reason that you shouldn't use your company ID in your advertisement.

RE: BLE Advertisement and UUIDs

Justin — Wed, 04 Mar 2020 15:06:03 GMT

Any input would be greatly helpful.