I want to create 16-bit UUID for your custom service when i get a 16bit uuid

[atong]

if you use sd_ble_uuid_vs_add function,you must use a 128-bit uuid.Somebody can tell me more,thank you!

[Artucas]

These kind of questions have been asked many times before. You will find all the answers here Services, beginner's tutorial, Characteristics, beginner's tutorial. These are tutorials provided by Nordic. For more understanding, you can read this questions which adds some more details: General question about servies, characteristics and connection. If something is unclear, you can ask again.

[Artucas]

Glad to hear i could help. If you feel that this helped you, please accept the answer that i posted. You can do it by marking gray circle to the left of my answer.