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/ttyUSB1';
-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;
my $s = new Device::SerialPort( $port ) || die $!;
$s->baudrate(9600);
while (1) {
my ($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 ), $/;
+ warn "# $len ",dump($string), dump( @v ), $/ if $debug;
my $header = shift @v;
- if ( $header == 0x424d ) {
+ my $checksum = pop @v; # remove checksum
+
+ my $sum = 0;
+ foreach my $b ( unpack('C*', substr($string,0,-2) ) ) {
+ $sum += $b;
+ }
+ $sum = $sum & 0xffff;
+
+ if ( $header == 0x424d && $sum == $checksum ) {
shift @v; # skip len
- pop @v; # remove checksum
+
my $influx = "pms3003,dc=trnjanska ";
foreach my $i ( 0 .. $#v ) {
$influx .= "$names[$i]=$v[$i],";
};
$influx =~ s/,$//;
+ $influx .= " $t";
print "$influx\n";
system "curl --silent -XPOST '$influx_url' --data-binary '$influx'"
}