9 use Mojo::IOLoop::Stream;
11 my $devname = "/dev/davis";
19 0x0, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
20 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
21 0x1231, 0x210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
22 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
23 0x2462, 0x3443, 0x420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
24 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
25 0x3653, 0x2672, 0x1611, 0x630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
26 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
27 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x840, 0x1861, 0x2802, 0x3823,
28 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
29 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0xa50, 0x3a33, 0x2a12,
30 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
31 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0xc60, 0x1c41,
32 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
33 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0xe70,
34 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
35 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
36 0x1080, 0xa1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
37 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
38 0x2b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
39 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
40 0x34e2, 0x24c3, 0x14a0, 0x481, 0x7466, 0x6447, 0x5424, 0x4405,
41 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
42 0x26d3, 0x36f2, 0x691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
43 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
44 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x8e1, 0x3882, 0x28a3,
45 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
46 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0xaf1, 0x1ad0, 0x2ab3, 0x3a92,
47 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
48 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0xcc1,
49 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
50 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0xed1, 0x1ef0
55 $bar_trend{-60} = "Falling Rapidly";
56 $bar_trend{196} = "Falling Rapidly";
57 $bar_trend{-20} = "Falling Slowly";
58 $bar_trend{236} = "Falling Slowly";
59 $bar_trend{0} = "Steady";
60 $bar_trend{20} = "Rising Slowly";
61 $bar_trend{60} = "Rising Rapidly";
63 #$SIG{TERM} = $SIG{INT} = sub {Mojo::IOLoop->reset if Mojo::IOLoop->is_running && !$DB::VERSION};
65 my $s = do_open($devname);
68 Mojo::IOLoop->start unless Mojo::IOLoop->is_running;
76 $d =~ s/([\%\x00-\x1f\x7f-\xff])/sprintf("%%%02X", ord($1))/eg;
77 # say "read added '$d' buf lth=" . length $buf;
78 if ($state eq 'waitnl' && $buf =~ /[\cJ\cM]+/) {
81 $s->write("LOOP 1\n");
83 } elsif ($state eq "waitloop") {
85 chgstate('waitlooprec');
88 } elsif ($state eq 'waitlooprec') {
89 if (length $buf >= 99) {
90 say "got loop record\n";
102 $tid = Mojo::IOLoop->timer(0.6 => sub {say "writing \\n"; $s->write("\n")});
108 say "state '$state' -> '$_[0]'";
115 my $ob = Serial->new($name, 19200) || die "$name $!\n";
116 say "streaming $name fileno(", fileno($ob), ")";
117 my $str = Mojo::IOLoop::Stream->new($ob);
118 $str->on(error=>sub {say "serial $_[1]"; undef $s; Mojo::IOLoop->reset;});
119 $str->on(close=>sub {say "serial closing"; undef $s; Mojo::IOLoop->reset;});
120 $str->on(timeout=>sub {say "serial timeout";});
121 $str->on(read=>sub {on_read(@_)});
124 $rid = Mojo::IOLoop->recurring(2.5 => sub {start_loop() if !$state || $state eq "waitnl";});
132 my $loo = substr $blk,0,3;
133 unless ( $loo eq 'LOO') {
134 say "Block invalid loo -> $loo"; return;
141 #$hsh{'next_rec'} = unpack("s", substr $blk,5,2);
143 $hsh{'Barometric_Trend'} = unpack("C", substr $blk,3,1);
144 $hsh{'Barometric_Trend_txt'} = $bar_trend{$hsh{'Barometric_Trend'}};
145 $t = unpack("s", substr $blk,7,2) / 1000;
146 # $hsh{'Barometric_Press_hg'} = $t;
147 $hsh{'Barometric_Press_mb'} = sprintf("%.2f",$t*33.8637526);
150 $t = unpack("s", substr $blk,9,2) / 10;
151 # $hsh{'Air_Temp_Inside_f'} = $t;
152 $hsh{'Air_Temp_Inside_c'} = sprintf("%.1f",($t - 32) * 5/9);
153 my $tf = unpack("s", substr $blk,12,2) / 10;
154 # $hsh{'Air_Temp_Outside_f'} = $tf;
155 $hsh{'Air_Temp_Outside_c'} = sprintf("%.1f",($tf - 32) * 5/9);
157 $hsh{'Wind_Speed_mph'} = unpack("C", substr $blk,14,1);
158 # $hsh{'Wind_Speed_mps'} = sprintf("%.1f",$hsh{'Wind_Speed_mph'}*0.44704);
159 $hsh{'Wind_Speed_10min_Avg_mph'} = unpack("C", substr $blk,15,1);
160 # $hsh{'Wind_Speed_10min_Avg_mps'} = sprintf("%.1f",$hsh{'Wind_Speed_10min_Avg_mph'}*0.44704);
161 $hsh{'Wind_Dir'} = unpack("s", substr $blk,16,2);
164 $hsh{'Humidity_Outside'} = unpack("C", substr $blk,33,1);
165 $hsh{'Humidity_Inside'} = unpack("C", substr $blk,11,1);
166 $hsh{'Dew_Point'} = dew_point($tf, $hsh{'Humidity_Outside'});
168 # $hsh{'UV'} = unpack("C", substr $blk,43,1);
169 # $hsh{'Solar'} = unpack("s", substr $blk,44,2); # watt/m**2
171 $hsh{'Rain_Rate'} = (unpack("s", substr $blk,41,2) / 100) * 25.4; # Inches per hr converted to mm
172 $hsh{'Rain_Storm'} = (unpack("s", substr $blk,46,2) / 100) * 25.4; # Inches per storm
173 #$hsh{'Storm_Date'} = unpack("s", substr $blk,48,2); # Need to parse data (not sure what this is)
174 $hsh{'Rain_Day'} = (unpack("s", substr $blk,50,2)/100) * 25.4;
175 $hsh{'Rain_Month'} = (unpack("s", substr $blk,52,2)/100) * 25.4;
176 $hsh{'Rain_Year'} = (unpack("s", substr $blk,54,2)/100) * 25.4;
178 $hsh{'ET_Day'} = unpack("s", substr $blk,56,2)/1000;
179 $hsh{'ET_Month'} = unpack("s", substr $blk,58,2)/100;
180 $hsh{'ET_Year'} = unpack("s", substr $blk,60,2)/100;
182 #$hsh{'Alarms_Inside'} = unpack("b8", substr $blk,70,1);
183 #$hsh{'Alarms_Rain'} = unpack("b8", substr $blk,70,1);
184 #$hsh{'Alarms_Outside'} = unpack("b8", substr $blk,70,1);
186 $hsh{'Batt_Transmitter'} = unpack("C", substr $blk,86,1); # * 0.005859375
187 $hsh{'Batt_Console'} = unpack("s", substr $blk,87,2) * 0.005859375;
189 $hsh{'Forecast_Icon'} = unpack("C", substr $blk,89,1);
190 $hsh{'Forecast_Rule'} = unpack("C", substr $blk,90,1);
192 $hsh{'Sunrise'} = sprintf( "%04d", unpack("S", substr $blk,91,2) );
193 $hsh{'Sunrise'} =~ s/(\d{2})(\d{2})/$1:$2/;
194 $hsh{'Sunset'} = sprintf( "%04d", unpack("S", substr $blk,93,2) );
195 $hsh{'Sunset'} =~ s/(\d{2})(\d{2})/$1:$2/;
197 #my $nl = ord substr $blk,95,1;
198 #my $cr = ord substr $blk,96,1;
200 my $crc = unpack "%n", substr($blk,97,2);
201 my $crc_calc = CRC_CCITT($blk);
204 say "inside: $hsh{Air_Temp_Inside_c} degC $hsh{Humidity_Inside}\% outside: $hsh{Air_Temp_Outside_c} degC $hsh{Humidity_Outside}\% wind: $hsh{Wind_Speed_mph} $hsh{Wind_Dir} deg $hsh{Barometric_Press_mb} mB";
207 print "CRC check failed for LOOP data!\n";
210 #delete @hsh{'crc', 'crc_calc', 'next_rec'};
211 #delete($hsh{crc})||die"cant delete crc";
212 #delete($hsh{crc_calc})||die"cant delete crc_calc";
213 #delete($hsh{next_rec})||die"cant delete next_rec";
221 # Using the simplified approximation for dew point
222 # Accurate to 1 degree C for humidities > 50 %
223 # http://en.wikipedia.org/wiki/Dew_point
225 my $dew_point = $temp - ( (100 - $rh)/5 );
232 # Expects packed data...
233 my $data_str = shift @_;
236 my @lst = split //, $data_str;
237 foreach my $data (@lst) {
238 my $data = unpack("c",$data);
241 my $index = $crc >> 8 ^ $data;
242 my $lhs = $crc_table[$index];
243 #print "lhs=$lhs, crc=$crc\n";
244 my $rhs = ($crc << 8) & 0xFFFF;