RE: How to add a custom characteristic to a standard BLE service?

Vidar Berg — Tue, 29 Dec 2020 09:07:01 GMT

Hi,

It is possible to add a characteristic with a 128 bit vendor UUID base to a 16 bit UUID service. To do this, you first need to add your custom uuid base through sd_ble_uuid_vs_add(), then reference this UUID base when adding your custom characteristic.

And remember that you need to increment the NRF_SDH_BLE_VS_UUID_COUNT setting in sdk_config adding whenever you add a new 128 bit base UUID. sd_ble_uuid_vs_add() will return a no memory error if you forget this.