Guru
Joined: 05/03/2018
Location: NetherlandsPosts: 4437
| Posted: 03:04pm 02 Feb 2024 |
Hi Gbbickterton,'
When you open a serial port, it starts with a clean RX and TX buffer.
You program
Do
opens the serial port
Then it checks for data
Then closes it
Then waits 100ms
loop
There is very little chance a valid character is received in the microseconds.
I think your program should
open the port.
Do
check content of buffers
pause
Loop
close the port
Volhout
Edited 2024-02-03 01:07 by Volhout