4 # sudo apt install libdevice-serialport-perl libdata-dump-perl
5 use Device::SerialPort;
6 use Data::Dump qw(dump);
8 my $port = shift @ARGV || '/dev/ttyUSB0';
9 my $influx_url = shift @ARGV || 'http://10.13.37.229:8186/write?db=telegraf';
10 $influx_url = 'http://10.13.37.92:8086/write?db=rot13';
12 my $s = new Device::SerialPort( $port ) || die $!;
17 $s->handshake('none');
18 $s->read_char_time(5);
19 $s->read_const_time(10);
24 my ($len, $string) = $s->read(9);
26 my @v = unpack('C*', $string);
27 warn "# $len ",dump($string), dump( @v ), $/;
28 my $pcnt = $v[3] + ( $v[4] / 100 );
29 if ( $v[0] == 0xff ) {
30 my $influx = "zph02,dc=trnjanska pm25_pcnt=$pcnt";
32 system "curl --silent -XPOST '$influx_url' --data-binary '$influx'"