Merge branch 'master' of github.com:dpavlin/air-quality

[air-quality] / iio2mqtt.pl

diff --git a/iio2mqtt.pl b/iio2mqtt.pl
index a9dce9f..a469024 100755 (executable)
--- a/iio2mqtt.pl
+++ b/iio2mqtt.pl
@@ -6,21 +6,36 @@ use Time::HiRes;
 
 # sudo apt install libiio-utils mosquitto-clients
 
+my $influx_url = shift @ARGV || 'http://10.60.0.92:8086/write?consistency=any&db=rot13';
+
+my $delay = $ENV{DELAY} || 1;
+
 my $hostname = `hostname -s`;
 chomp($hostname);
 
 while(1) {
 
        my $t = Time::HiRes::time;
+       my $t_influx = int( $t * 1_000_000_000 );
 
        my $iio = `iio_info`;
 
        my $device;
        my $name;
 
+       my $influx = '';
+
        foreach ( split(/\n/, $iio) ) {
                if ( m/iio:device\d+:\s+(\S+)/ ) {
                        $device = $1;
+
+                       if ( $influx =~ m/,$/ ) {
+                               $influx =~ s/,$/ $t_influx\n/;
+                       } elsif ( $influx =~ m/ $/ ) { # only device
+                               $influx =~ s/\S+\s$//;
+                       }
+                       $influx .= "iio,dc=trnjanska,host=$hostname,device=$device ";
+
                } elsif ( m/(\S+):\s+\(input\)/ ) {
                        $name = $1;
                } elsif ( m/attr\s+0:\s+input\svalue: (\d+[\.\d]+)/ ) {
@@ -31,10 +46,19 @@ while(1) {
                        my $topic = "iio/$hostname/$device/$name";
                        #print "$topic $val\n";
                        system "mosquitto_pub -h rpi2 -t $topic -m $val";
+
+                       $influx .= "$name=$val,";
                } else {
                        #warn "# $_\n";
                }
        }
 
-       sleep Time::HiRes::time + 1 - $t;
+       $influx =~ s/,$/ $t_influx/;
+       system "curl --silent -XPOST '$influx_url' --data-binary '$influx'";
+       warn "$influx\n";
+
+       my $dt = Time::HiRes::time + $delay - $t - 0.01;
+       if ( $dt > 0 ) {
+               sleep $dt;
+       }
 }