RE: I am trying to send ADC data to BLUETOOTH. But the data disappears.

Karl Ylvisaker — Mon, 29 Mar 2021 08:13:36 GMT

Hello,

[quote user=""]I am working on overturning the saadc project based on ble_app_uart.[/quote]

I am not sure I understand what you mean when you say 'overturning the saadc project based on ble_app_uart', please elaborate.

[quote user=""]

Terminal and debug monitor output with the same value, but Bluetooth app data is missing data.

What is the problem?
The source code is as follows.

[/quote]

Are you saying that the data is successfully retrieved, but never received on the connected BLE device?
Normally, I would first ask for a sniffer trace to confirm whether the data is ever transmitted by the device, but when briefly looking through the code I see that you never check the returned error code from ble_nus_data_send. Please make sure to always check the returned error codes from SDK functions.

Also ensure that you have DEBUG defined in your preprocessor defines, like shown in the included image:

This will make the logger output a detailed error message when a non-NRF_SUCCESS error is passed to an APP_ERROR_CHECK.
Do this, and let me know if there is any non-NRF_SUCCESS error codes returned from your code.

Best regards,
Karl