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-0:1.5:1.0';
+my $influx_url = shift @ARGV || 'http://192.168.3.40:8086/write?consistency=any&db=rot13';
my $s = new Device::SerialPort( $port ) || die $!;
$s->baudrate(9600);
while (1) {
+ alarm 3;
+ # Usb serial which I'm using is buggy and blocks from time to time.
+ # This will ensure that we have passed here every 3 seconds
+ # or we will be killed and systemd will restart us
+
my ($len, $string) = $s->read(9);
my $t = int( Time::HiRes::time() * 1_000_000_000 );
die $! if ! defined($len);
my $checksum = $v[8];
my $pcnt = $v[3] + ( $v[4] / 100 );
- if ( $v[0] == 0xff && $sum == $checksum ) {
+ if ( $v[0] == 0xff && $sum == $checksum && $pcnt > 0) {
my $influx = "zph02,dc=trnjanska pm25_pcnt=$pcnt $t";
- print "$influx\n";
- system "curl --silent -XPOST '$influx_url' --data-binary '$influx'"
+ print "$influx\n" if -e '/dev/shm/air-debug';
+ system "curl --max-time 2 --silent -XPOST '$influx_url' --data-binary '$influx'";
+ system "mosquitto_pub -h rpi2 -t 'air/zph02/pm25' -m $pcnt";
}
}