git.rot13.org Git - vaillant-thermostat/blob - serial.pl

   1 #!/usr/bin/perl
   2 use warnings;
   3 use strict;
   4 use Device::SerialPort;
   5 use Data::Dump qw(dump);
   6 use Time::HiRes qw(time);
   7
   8 my $read_len = 255;
   9
  10 my $path = shift @ARGV || '/dev/serial/by-path/platform-20980000.usb-usb-0:1.3.1:1.0-port0';
  11
  12 $|=1;
  13
  14 my $s = new Device::SerialPort( $path ) || die $!;
  15 $s->baudrate(2400);
  16 $s->databits(8); # 7
  17 $s->parity('none');
  18 $s->stopbits(1);
  19 $s->handshake('none');
  20 $s->read_char_time(2);
  21 $s->read_const_time(3);
  22
  23 #$s->write('o');
  24
  25 my $t = time();
  26
  27 my $sym;
  28
  29 sub _mqtt_pub {
  30         my ( $t, $m ) = @_;
  31         my $cmd = "mosquitto_pub -h rpi2 -t 'stat/rpi/$t' -m '$m'";
  32         #warn "# _mqtt_pub [$t] = [$m]\n";
  33         warn "## $cmd";
  34         system $cmd;
  35 }
  36
  37 while (1) {
  38         my ($len, $string) = $s->read($read_len);
  39         my $ts = time();
  40
  41         if ( $len > 0 ) {
  42                 my $hex = unpack('H*',$string);
  43                 $hex =~ s/(..)/$1 /g;
  44 =for later
  45                 my $ascii;
  46                 foreach ( split(/ /, $hex) ) {
  47                         if ( ! exists $sym->{$_} ) {
  48                                 $chr++;
  49                         $ascii
  50 =cut
  51
  52                 my $temp = `curl localhost:3000/temp.txt`;
  53                 $temp =~ s/\s+/ /gs;
  54
  55                 #printf "%s %2d  %s\n", time(), $len, $hex;
  56                 printf "%8.4f %6.2f %2d  %s | %s\n", $ts, $ts - $t, $len, $hex, $temp;
  57                 $t = time();
  58
  59                 if ( $hex =~ m/^.+aa fc 39 aa (.+)/ ) {
  60                         my @l = split(/\s+/,$1);
  61                         my @d = (
  62                                 hex( $l[0] . $l[1] ),
  63                                 hex( $l[3] . $l[4] ),
  64                                 hex( $l[6] ),
  65                                 hex( $l[12] ),
  66                                 hex( $l[14] ), # * 300,
  67                                 hex( $l[15] ), # * 400,
  68                                 hex( $l[18] ),
  69                         );
  70
  71                         _mqtt_pub "stat/boiler/" . chr(ord('a') + $_) => $d[$_] foreach 0 .. $#d;
  72                 }
  73
  74         }
  75 }
  76
  77 $s->close;