I’m finding this a little strange. The app is getting the HELLO reply from the dropController but then losing the connection / not getting anything else.
If I start a sequence and then disconnect the usb cable the app crashes with the error “The port is closed”. I then have to restart everything (I haven’t trapped a disconnect error internally).
Here is the log I get from the loop page using the same drop settings as you. I get the FTS code reliably.
Loop Page init performed
SUB – updateDropData(). SEQ = 1
SUB – updateScreen()
wait user click START
START BTN clicked
SUB – sendDropData()
timeOutCount = 1
timeOutCount = 2
timeOutCount = 3
receivedData = <FTS>
FTS rec’d from the dropController
On the main window, above the debug text box are a couple of flags. Does the Connected flag stay as “True”.
If you have visual studio installed it may be worth while trying the examples at
This will then confirm the serial connection works.
Are you still using the Nano?