use Time::HiRes;
use Data::Dump qw(dump);
-my $port = shift @ARGV || '/dev/ttyUSB0';
+my $port = shift @ARGV || '/dev/serial/by-path/pci-0000:00:1a.7-usb-0:5.3.4:1.2';
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';
$s->parity('none');
$s->stopbits(1);
$s->handshake('none');
-$s->read_char_time(0);
+$s->read_char_time(1);
$s->read_const_time(10);
$s->debug(1);
die $! if ! defined($len);
if ( $len > 0 ) {
my @v = unpack('C*', $string);
- #warn "# $len ",dump($string), dump( @v ), $/;
+ if ( $#v < 8 ) {
+ die "# $len ",dump($string), dump( @v ), $/;
+ }
my $sum = 0;
foreach my $i ( 1 .. $#v - 1 ) {
}
$sum = 0xff - $sum + 1;
- my $checksum = $v[8] || die "no checksum";
+ my $checksum = $v[8];
my $co2 = $v[2] * 255 + $v[3];
if ( $v[0] == 0xff && $sum == $checksum ) {
my $influx = "mh-z19b,dc=trnjanska co2=$co2 $t";