Toggle the garage door button

dmx/garage.pl

@@ -0,0 +1,108 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+use Time::HiRes qw( usleep );
+
+# Local modules
+use Cwd qw(abs_path);
+use File::Basename qw(dirname);
+use lib dirname(abs_path($0));
+use DMX;
+
+# User config
+my $RELAY_DELAY  = 0.20;
+my %DIM          = (
+	'OFF'    => [
+		{ 'channel' => 16, 'value' => 0,   'time' => 0 }
+	],
+	'TOGGLE' => [
+		{ 'channel' => 16, 'value' => 255, 'time' => 0 }
+	],
+);
+
+# App config
+my $DATA_DIR     = DMX::dataDir();
+my $OUTPUT_FILE  = $DATA_DIR . 'GARAGE';
+my $STATE_SOCK   = $OUTPUT_FILE . '.socket';
+my $PUSH_TIMEOUT = 20;
+my $PULL_TIMEOUT = $PUSH_TIMEOUT * 3;
+my $DELAY        = $PULL_TIMEOUT / 2;
+
+# Debug
+my $DEBUG = 0;
+if ($ENV{'DEBUG'}) {
+	$DEBUG = 1;
+}
+
+# Sockets
+DMX::stateSocket($STATE_SOCK);
+
+# State
+my $state     = 'OFF';
+my $stateLast = $state;
+my %exists    = ();
+my $pushLast  = 0;
+my $pullLast  = time();
+my $update    = 0;
+
+# Always force lights out at launch
+DMX::dim({ 'channel' => 16, 'value' => 0, 'time' => 0 });
+
+# Loop forever
+while (1) {
+
+	# State is calculated; use newState to gather data
+	my $newState = $state;
+
+	# Wait for state updates
+	my $cmdState = DMX::readState($DELAY, \%exists, undef());
+	if (defined($cmdState)) {
+		$newState = $cmdState;
+		$pullLast = time();
+	}
+
+	# Calculate the new state
+	$stateLast = $state;
+	if ($newState eq 'TOGGLE') {
+		$state = 'TOGGLE';
+	} else {
+		$state = 'OFF';
+	}
+
+	# Force updates on a periodic basis
+	if (time() - $pushLast > $PUSH_TIMEOUT) {
+		$update = 1;
+	}
+
+	# Die if we don't see regular updates
+	if (time() - $pullLast > $PULL_TIMEOUT) {
+		die('No update on state socket in past ' . $PULL_TIMEOUT . " seconds. Exiting...\n");
+	}
+
+	# Force updates on any state change
+	if ($state eq 'TOGGLE') {
+		if ($DEBUG) {
+			print STDERR 'State change: ' . $stateLast . ' => ' . $state . "\n";
+		}
+		$update = 1;
+	}
+
+	# Update the fan
+	if ($update) {
+
+		# Toggle on
+		DMX::applyDataset($DIM{'TOGGLE'}, 'TOGGLE', $OUTPUT_FILE);
+
+		# Wait
+		usleep($RELAY_DELAY * 1000000);
+
+		# Toggle off
+		DMX::applyDataset($DIM{'OFF'}, 'OFF', $OUTPUT_FILE);
+
+		# Update the push time
+		$pushLast = time();
+
+		# Clear the update flag
+		$update = 0;
+	}
+}

dmx/launchd/com.uberzach.ola.garage.plist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UserName</key>
+	<string>tv</string>
+	<key>LimitLoadToHosts</key>
+	<array>
+		<string>heady.uberzach.com</string>
+	</array>
+	<key>RunAtLoad</key>
+	<true/>
+	<key>Label</key>
+	<string>com.uberzach.ola.garage</string>
+	<key>KeepAlive</key>
+	<dict>
+		<key>OtherJobEnabled</key>
+		<dict>
+			<key>com.uberzach.ola.dmx</key>
+			<true/>
+			<key>com.uberzach.projector</key>
+			<true/>
+		</dict>
+	</dict>
+	<key>ProgramArguments</key>
+	<array>
+		<string>/Users/tv/bin/video/dmx/garage.pl</string>
+	</array>
+</dict>
+</plist>