Transmitting multiple records of data over BLE

[Sravanakumar]

Hi,

    Recently i have started working on nRF52 BLE SDKv16 (with PCA10040 and PCA10059)and i wanted to transmit multiple records of temperature data which are collected with the configured interval, what are the possible ways to do that and how?

[Edvin]

Hello,

You need to decide whether you want to use separate services/characteristics for this, or you can use one characteristic and send a string of bytes representing each sensor. Either way, if you want to get familiar, you can use the ble_app_uart and ble_app_uart_c examples.

NB: It is difficult to develop for the dongle, because it doesn't have a debugger. I suggest you get hold of one extra DK for development. When you are satisfied, you can port your application to the dongle.

BR,
Edvin

[Sravanakumar]

Thanks Edvin for the reply, 1) can i use the characteristic with variable data length ? and 2)if i use uart , when the third party people uses the ble device they may expect this to work as normal uart functionality or 3) can i use the uart service with custom UUID ?

incase , if i approach 3rd option , in my application i may use traditional uart functionality also ,as specified in the example, will it effect my sensor data collection?

[Edvin]

Hello,

I am leaving for vacation today, so if you have any further questions, plese open a new ticket. I am sorry for the inconvenience.

1) Yes.

2) Yes.

3) YEs.

Best regards,

Edvin