document arduino mq7 setup

[air-quality] / dsm501.pl

diff --git a/dsm501.pl b/dsm501.pl
index 8e183c8..3b2f914 100755 (executable)
--- a/dsm501.pl
+++ b/dsm501.pl
@@ -6,7 +6,7 @@ use Device::SerialPort;
 use Time::HiRes;
 use Data::Dump qw(dump);
 
-my $port = shift @ARGV || '/dev/ttyUSB2';
+my $port = shift @ARGV || '/dev/serial/by-path/pci-0000:00:1a.7-usb-0:5.1.3:1.0-port0';
 my $influx_url = shift @ARGV || 'http://10.13.37.229:8186/write?db=telegraf';
 $influx_url = 'http://10.13.37.92:8086/write?db=rot13';
 my $measurement = $ENV{MEASUREMENT} || 'dsm501';
@@ -27,7 +27,7 @@ while (1) {
        my $t = int( Time::HiRes::time() * 1_000_000_000 );
        die $! if ! defined($len);
        if ( $len > 0 ) {
-               warn "# len=$len ",dump($string);
+               #warn "# len=$len ",dump($string);
                if ( $string !~ m/^#/ ) {
                        $string =~ s/[\r\n]+$//;
                        $string =~ s/\s/,/g;