How do I save RSSI value information to a .csv file from the ble_app_interactive example?

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

ella482 — Fri, 09 Aug 2019 15:33:01 GMT

Thank you, Shusheel! I appreciate your help.

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

Susheel Nuguru — Fri, 09 Aug 2019 06:46:06 GMT

send it over UART emulated COM port and then log it with a terminal device that is listening to the COM port. You then can have any program/Script running on the computer (and not on nRF device) to convert whatever you received and logged (into some text file on the computer) into a CSV file)

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

ella482 — Thu, 08 Aug 2019 21:31:44 GMT

Thank you, I just realized that too. How can I transfer data from the DK to the computer, then?

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

Susheel Nuguru — Thu, 08 Aug 2019 06:46:27 GMT

There is no filesystem on the nRF device on which fopen could work. The test that works for you is running on your computer which has ubuntu OS and a file system on which fopen could work.

Apart from the fact that file system is not supported in SDK we deliver, you also used fp pointer without even checking if it is a NULL pointer.

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

ella482 — Wed, 07 Aug 2019 16:35:59 GMT

Thank you, Susheel!

I appreciate your help even though the question was a little out there. I was just curious about how creating a csv file interacts with the rssi reading. It seems that once the csv code is placed in the ble_cli example, the example interacts in such a way that the csv creation does not work. Do you know why this could be?

RE: How do I save RSSI value information to a .csv file from the ble_app_interactive example?

Susheel Nuguru — Wed, 07 Aug 2019 10:02:22 GMT

Hmm, This question does not look very specific to Nordic. Your problem seems to be trouble with converting any signed value and putting it into CSV file.

I am not an expert in CSV format but quick googling took me to this thread that looks promising.