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 use LWP::UserAgent;
   8
   9 my $read_len = 255;
  10
  11 # bottom serial on rpi
  12 my $path = shift @ARGV || '/dev/serial/by-path/platform-1c14400.usb-usb-0:1:1.0-port0';
  13
  14 $|=1;
  15
  16 my $ua = LWP::UserAgent->new;
  17
  18 connect_again:
  19
  20 my $s = new Device::SerialPort( $path ) || die $!;
  21 $s->baudrate(2400);
  22 $s->databits(8); # 7
  23 $s->parity('none');
  24 $s->stopbits(1);
  25 $s->handshake('none');
  26 $s->read_char_time(2);
  27 $s->read_const_time(3);
  28
  29 #$s->write('o');
  30
  31 my $t = time();
  32
  33 my $sym;
  34
  35 sub _mqtt_pub {
  36         my ( $t, $m ) = @_;
  37         my $cmd = "mosquitto_pub -h rpi2 -t '$t' -m '$m'";
  38         #warn "# _mqtt_pub [$t] = [$m]\n";
  39         #warn "## $cmd";
  40         system $cmd;
  41 }
  42
  43 while (1) {
  44         my ($len, $string) = $s->read($read_len);
  45         goto connect_again if ! defined $len;
  46         my $ts = time();
  47
  48         if ( $len > 0 ) {
  49                 my $hex = unpack('H*',$string);
  50                 $hex =~ s/(..)/$1 /g;
  51
  52                 my $temp = `curl --silent rpi:3000/temp.txt`;
  53                 $temp =~ s/\s+/ /gs;
  54                 $temp =~ s/^\s+//;
  55
  56                 #printf "%s %2d  %s\n", time(), $len, $hex;
  57                 printf "%8.4f %6.2f %2d  %s | %s\n", $ts, $ts - $t, $len, $hex, $temp;
  58                 $t = time();
  59
  60                 if ( $hex =~ m/^.+aa fc 39 aa (.+)/ ) {
  61                         my @l = split(/\s+/,$1);
  62                         my @d = (
  63                                 hex( $l[0] . $l[1] ),
  64                                 hex( $l[3] . $l[4] ),
  65                                 hex( $l[6] ),
  66                                 hex( $l[12] ),
  67                                 hex( $l[14] ), # * 300,
  68                                 hex( $l[15] ), # * 400,
  69                                 hex( $l[18] ),
  70                         );
  71
  72                         _mqtt_pub "stat/boiler/" . chr(ord('a') + $_) => $d[$_] foreach 0 .. $#d;
  73                 }
  74
  75                 my @v = split(/\s+/, $temp, 4);
  76                 my @n = qw( DS18B20/temperature DHT22/temperature DHT22/humidity DHT22/errors );
  77                    @n = qw( DS18B20/temperature DHT22/temperature DHT22/humidity DHT22/errors ) if $#v == 1; # no DS18B20
  78                 foreach (@v) {
  79                         _mqtt_pub "stat/boiler/" . shift(@n) => $_;
  80                 }
  81
  82                 my $t = int( $ts * 1_000_000_000 );
  83                 my @a = split(/ /, $hex);
  84                 if ( $#a == 66 ) {
  85                         my $measurement = "boiler " . join(',',
  86                                 "o19=".hex( $a[19] ),
  87                                 "o25=".hex( $a[35] . $a[36] ),
  88                                 "o30=".hex( $a[38] . $a[39] ),
  89                                 "o41=".hex( $a[41] ),
  90                                 "o47=".hex( $a[47] ),
  91                                 "o49=".hex( $a[49] ),
  92                                 "o50=".hex( $a[50] ),
  93                                 "o51=".hex( $a[51] ),
  94                                 "o53=".hex( $a[53] ),
  95                                 "ds18b20_temp=$v[0]", "dht22_temp=$v[1]", "dht22_hum=$v[2]"
  96                         );
  97                         my $response = $ua->post( "http://10.60.0.92:8086/write?db=rot13", Content => $measurement );
  98                         chomp(my $content = $response->content());
  99                         if ($response->is_success()) {
 100                                 #warn "OK $content\n";
 101                         } else {
 102                                 warn "ERROR $content\n";
 103                                 die $response->status_line;
 104                         }
 105                 }
 106         }
 107 }
 108
 109 $s->close;