don't dump response length without DEBUG=1

[vrDialog] / dialog.pl

diff --git a/dialog.pl b/dialog.pl
index 7daf81c..0308a80 100755 (executable)
--- a/dialog.pl
+++ b/dialog.pl
@@ -5,6 +5,8 @@ use strict;
 use Data::Dump qw(dump);
 use Device::SerialPort qw(:STAT);
 
+my $debug = $ENV{DEBUG} || 0;
+
 my $port = Device::SerialPort->new('/dev/ttyUSB0');
 $port->baudrate(9600);
 $port->databits(8);
@@ -61,7 +63,7 @@ retry:
        $port->write( $bytes );
 
        my $data = $port->read(1);
-       warn "<< len: ",ord($data);
+       warn "<< len: ",ord($data) if $debug;
 
        goto retry if ord($data) == 0;
 
@@ -77,3 +79,6 @@ v '07 0A 00 00 00 04 44', 'software version';
 
 v '07 00 01 00 06 0E EA', 'temperatures';
 
+v '07 00 00 00 26 0A A6', 'last errros';
+
+v '07 00 00 00 26 00 AC', 'last errros (with invalid length)';