CSV text has multiple rows

MIT App Inventor Help
1

I am getting the following message:

multiple rows (2)

I understand the message, but what can I do in the app to test the text for multiple rows before attempting "list from csv row"?

The text is being read from USB serial and is expected to be a single line. The text is coming from a GPS module and if read by a USB terminal app is simply a continuous stream of lines. Here is a sample (the green text is the serial data). My app must be reading more than one line and sending that to the "list from csv row".

serial text

2

Possibly test like this?

image
image697×273 31.2 KB

1 Like
3

What is output might be a csv table. A guess to solve you issue might be to use the list from csv table Block instead of the list from csv row Block.

1 Like
4

Thanks to both of you. I'll see what I can do with your suggestions.

5

If csv conversion blocks fail, you could instead use the
split at \n block to get a list of lines, then
use the split at ',' block on each line to get lists of items from each line.