cu --nostop -l /dev/ttyUSB3 -s 115200 dir

quote:

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Originally posted by EmfDev

AT commands are not supported on hte GMC-800. It does not have WiFi feature.

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# connected?
[ ! -e /dev/"$GEIGER" ] && exit 1

stty -F /dev/"$GEIGER" raw -echo 115200

# Was tty reconnected?  Reset so we get a reading on the second try.
if ! stty -F /dev/"$GEIGER" | grep -q 'rprnt = ^K'
then    # send dummy command
        echo -n '>>' > /dev/"$GEIGER"

        # set a dummy settings so we can detect reconnection
        stty -F /dev/"$GEIGER" rprnt '^K'
fi

CPM=$(perl << 'END'
        use strict;
        use warnings;

        use Momjian_us;

        # could hang, allow two seconds for read
        # https://unix.stackexchange.com/questions/559235/read-stdin-with-timeout
        local $SIG{ALRM} = sub { exit(1) };
        alarm(2);

        my $device = "/dev/$ENV{GEIGER}";
        open(my $geiger, '+<', $device) or
          sysdie("cannot open $device");

        print({$geiger} '<GETCPM>>');

        sysdie("cannot read four bytes from $device")
          if (read($geiger, my $byte4, 4) != 4);
        # Network/big endian ordering 4-byte integer
        # Newer models use 4-byte CPM for the GMC-500+, not 2
        # https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=10394
        # https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=9682
        print unpack('N', $byte4) . "\n";

        alarm 0;
END
)

echo "$CPM"

quote:

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Originally posted by ullix

I think you would be better off coding in Python. Code as simple as your current is e.g : "geigerlog_simple.py"
you find here: https://sourceforge.net/projects/geigerlog/files/
There are some nuanced increases in complexity in files on the same site.

Pre-releases of developments are: https://sourceforge.net/p/geigerlog/discussion/devel/

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