Yo Hal!
On Mon, 29 May 2023 15:22:43 -0700
Hal Murray via devel wrote:
> Can somebody give me a lesson on this area?
>
> The code is:
> tty = open("/dev/ttyACM0")
> forever:
> line = tty.readline()
> a) How do I read mostly ASCII without crashing when there is
> non-ASCII?
To open to read binary:
tty = open("/dev/ttyACM0", "rb")
The line will be binary. Getting just the NMEA out will be fun.
> b) Why is a u-Blox LEA-M8T sending me non-ASCII crap?
Becasue it wants to. Becasue UBX is better than NMEA.
> This is coming from the USB port. It's running in NMEA mode.
> I don't think I have sent it any commands.
From u-blox8-M8_ReceiverDescrProtSpec_UBX-13003221.pdf:
"By default all ports are configured for UBX and NMEA protocols."
RGDS
GARY
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