added --max-time to curl so we fail quickly without network

[air-quality] / pms3003.pl

diff --git a/pms3003.pl b/pms3003.pl
index 2d52db8..f1d458a 100755 (executable)
--- a/pms3003.pl
+++ b/pms3003.pl
@@ -3,11 +3,11 @@ use warnings;
 use strict;
 # sudo apt install libdevice-serialport-perl libdata-dump-perl
 use Device::SerialPort;
+use Time::HiRes;
 use Data::Dump qw(dump);
 
-my $port = shift @ARGV || '/dev/ttyUSB0';
-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 $port = shift @ARGV || '/dev/serial/by-path/platform-3f980000.usb-usb-0:1.3:1.0-port0';
+my $influx_url = shift @ARGV || 'http://10.13.37.92:8086/write?consistency=any&db=rot13';
 
 my $debug = $ENV{DEBUG} || 0;
 
@@ -36,6 +36,8 @@ pm10_r
 while (1) {
 
        my ($len, $string) = $s->read(24);
+       my $t = int( Time::HiRes::time() * 1_000_000_000 );
+       die $! if ! defined($len);
        if ( $len > 0 ) {
                my @v = unpack('n*', $string);
                warn "# $len ",dump($string), dump( @v ), $/ if $debug;
@@ -56,8 +58,9 @@ while (1) {
                                $influx .= "$names[$i]=$v[$i],";
                        };
                        $influx =~ s/,$//;
+                       $influx .= " $t";
                        print "$influx\n";
-                       system "curl --silent -XPOST '$influx_url' --data-binary '$influx'"
+                       system "curl --max-time 2 --silent -XPOST '$influx_url' --data-binary '$influx'"
                }
        }