How can i get characteristic values?

[roger.k]

Hi. I'm using PCA10028 as central, SDK10.0.0, S130 V1.0.0.

I can discover 180A UUID and characteristic UUIDs which pripheral device provides such as 0x2a29, 0x2a24, 0x2a26, 0x2a27.

Now I want to read all characteristic's values. For example, I think there is "Manufacturer Name String" in 0x2a29. I want to read "Manufacturer Name String" whenever I want. The values could be "0x41424344" if the string is "ABCD".

How can I read characteristics values? I hope your reply.

[RK]

sd_ble_gattc_char_value_by_uuid_read()

[roger.k]

Thanks. This function provides 4Bytes. What if characteristic value length is bigger than 4bytes?

[RK]

No it doesn't - it provides a return code telling you whether it succeeded or not, just like most of the other SDK functions. The data comes in a callback later, like many of the other softdevice functions.

See the message chart

infocenter.nordicsemi.com/index.jsp

[roger.k]

Thanks a lot. I totally understand what you said. It was very helpful. Thank you very much again.