RE: How to combine Buttonless DFU, battery service and a custom service?

Karl Ylvisaker — Fri, 25 Sep 2020 11:43:40 GMT

Hello,

[quote user="Joshhsu.tw"]After defining "DEBUG" in preprocessor, it turned out that the error come from ble_advertising_init, error description is "NRF_ERROR_INVALID_PARAM'.[/quote]

Well done - this tells us that the problem here is the parameters passed to ble_advertising_init, as written in the ble_advertising_init API Reference documentation.
What is the entire contents of your ble_advertising_init_t? Are you advertising with a device name and appearance?

I suspect that either your packet is too long ( most likely ), since you are trying to include all those UUID's in your advertising, and the advertising packet length is limited to 31 bytes total.
Either that, or you are making an invalid configuration.
Could you try to run this again, but leave out the BAS and DIS UUID's from your advertisement? See if this resolves your error - if it does, then we know that the length is the problem. If the issue persists, then we know that it is an invalid configuration ( depending on the remaining content of your advertising packet, of course. ).

Best regards,
Karl

RE: How to combine Buttonless DFU, battery service and a custom service?

Joshhsu.tw — Fri, 25 Sep 2020 07:18:29 GMT

After defining "DEBUG" in preprocessor, it turned out that the error come from ble_advertising_init, error description is "NRF_ERROR_INVALID_PARAM'.