index.js

var instance_skel = require('../../instance_skel');
var tcp           = require('../../tcp');
var debug;
var log;

var IRIS = [
	{ id: '11', label: 'F1.8' },
	{ id: '10', label: 'F2.0' },
	{ id: '0F', label: 'F2.4' },
	{ id: '0E', label: 'F2.8' },
	{ id: '0D', label: 'F3.4' },
	{ id: '0C', label: 'F4.0' },
	{ id: '0B', label: 'F4.8' },
	{ id: '0A', label: 'F5.6' },
	{ id: '09', label: 'F6.8' },
	{ id: '08', label: 'F8.0' },
	{ id: '07', label: 'F9.6' },
	{ id: '06', label: 'F11' },
	{ id: '00', label: 'CLOSED' }
];

var SHUTTER = [
	{ id: '11', label: '1/1000000' },
	{ id: '10', label: '1/6000' },
	{ id: '0F', label: '1/4000' },
	{ id: '0E', label: '1/3000' },
	{ id: '0D', label: '1/2000' },
	{ id: '0C', label: '1/1500' },
	{ id: '0B', label: '1/1000' },
	{ id: '0A', label: '1/725' },
	{ id: '09', label: '1/500' },
	{ id: '08', label: '1/350' },
	{ id: '07', label: '1/250' },
	{ id: '06', label: '1/180' },
	{ id: '05', label: '1/125' },
	{ id: '04', label: '1/100' },
	{ id: '03', label: '1/90' },
	{ id: '02', label: '1/60' },
	{ id: '01', label: '1/30' }
];

var PRESET = [];
for (var i = 0; i < 255; ++i) {
	if (i<90 || i>99){
		PRESET.push({ id: ('0' + i.toString(16)).substr(-2,2), label: i });
	}
}

var SPEED = [
	{ id: '18', label: 'Speed 24 (Fast)' },
	{ id: '17', label: 'Speed 23' },
	{ id: '16', label: 'Speed 22' },
	{ id: '15', label: 'Speed 21' },
	{ id: '14', label: 'Speed 20' },
	{ id: '13', label: 'Speed 19' },
	{ id: '12', label: 'Speed 18' },
	{ id: '11', label: 'Speed 17' },
	{ id: '10', label: 'Speed 16' },
	{ id: '0F', label: 'Speed 15' },
	{ id: '0E', label: 'Speed 14' },
	{ id: '0D', label: 'Speed 13' },
	{ id: '0C', label: 'Speed 12' },
	{ id: '0B', label: 'Speed 11' },
	{ id: '0A', label: 'Speed 10' },
	{ id: '09', label: 'Speed 09' },
	{ id: '08', label: 'Speed 08' },
	{ id: '07', label: 'Speed 07' },
	{ id: '06', label: 'Speed 06' },
	{ id: '05', label: 'Speed 05' },
	{ id: '04', label: 'Speed 04' },
	{ id: '03', label: 'Speed 03' },
	{ id: '02', label: 'Speed 02' },
	{ id: '01', label: 'Speed 01 (Slow)' }
];


function hex2str(hexdata) {
		var result = '';
		for (var i = 0; i < hexdata.length; i += 2) {
				result += String.fromCharCode( parseInt(hexdata.substr(i,2), 16) );
		}

		return result;
};

function instance(system, id, config) {
	var self = this;

	// super-constructor
	instance_skel.apply(this, arguments);

	return self;
}

instance.prototype.init_tcp = function() {
	var self = this;

	if (self.tcp !== undefined) {
		self.tcp.destroy();
		delete self.tcp;
	}

	if (self.config.host !== undefined) {
		self.tcp = new tcp(self.config.host, self.config.port);

		self.tcp.on('status_change', function (status, message) {
			self.status(status, message);
		});

		self.tcp.on('error', function (e) {
			debug('tcp error:', e.message);
		});

		self.tcp.on('data', function (data) {
			console.log("Data from PTZoptics VISCA: ", data);
		});

		debug(self.tcp.host + ':' + self.config.port);
	}
};

instance.prototype.init = function() {
	var self = this;

	debug = self.debug;
	log = self.log;
	self.ptSpeed = '0C';
	self.ptSpeedIndex = 12;

	self.status(self.STATUS_UNKNOWN);

	self.init_tcp();
	self.actions(); // export actions
	self.init_presets();
};

instance.prototype.updateConfig = function(config) {
	var self = this;
	self.config = config;

	if (self.tcp !== undefined) {
		self.tcp.destroy();
		delete self.tcp;
	}

	self.status(self.STATUS_UNKNOWN);

	if (self.config.host !== undefined) {
		self.init_tcp();
	}
};

// Return config fields for web config
instance.prototype.config_fields = function () {
	var self = this;

	return [
		{
			type: 'text',
			id: 'info',
			width: 12,
			label: 'Information',
			value: 'This module controls PTZ cameras with VISCA over IP protocol'
		},
		{
			type: 'textinput',
			id: 'host',
			label: 'Camera IP',
			width: 6,
			regex: self.REGEX_IP
		},
		{
			type: 'textinput',
			id: 'port',
			label: 'VISCA TCP port',
			width: 6,
			default: 5678,
			regex: self.REGEX_PORT
		}
	]
};

// When module gets deleted
instance.prototype.destroy = function() {
	var self = this;

	if (self.tcp !== undefined) {
		self.tcp.destroy();
	}
	debug("destroy", self.id);
};

instance.prototype.init_presets = function () {
	var self = this;
	var presets = [
		{
			category: 'Pan/Tilt',
			label: 'UP',
			bank: {
				style: 'png',
				text: '',
				png64: image_up,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,255)
			},
			actions: [
				{
					action: 'up',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'DOWN',
			bank: {
				style: 'png',
				text: '',
				png64: image_down,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'down',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'LEFT',
			bank: {
				style: 'png',
				text: '',
				png64: image_left,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'left',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'RIGHT',
			bank: {
				style: 'png',
				text: '',
				png64: image_right,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'right',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'UP RIGHT',
			bank: {
				style: 'png',
				text: '',
				png64: image_up_right,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'upRight',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'UP LEFT',
			bank: {
				style: 'png',
				text: '',
				png64: image_up_left,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'upLeft',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'DOWN LEFT',
			bank: {
				style: 'png',
				text: '',
				png64: image_down_left,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'downLeft',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'DOWN RIGHT',
			bank: {
				style: 'png',
				text: '',
				png64: image_down_right,
				pngalignment: 'center:center',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'downRight',
				}
			],
			release_actions: [
				{
					action: 'stop',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'Home',
			bank: {
				style: 'text',
				text: 'HOME',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'home',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'Speed Up',
			bank: {
				style: 'text',
				text: 'SPEED\\nUP',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'ptSpeedU',
				}
			]
		},
		{
			category: 'Pan/Tilt',
			label: 'Speed Down',
			bank: {
				style: 'text',
				text: 'SPEED\\nDOWN',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'ptSpeedD',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Zoom In',
			bank: {
				style: 'text',
				text: 'ZOOM\\nIN',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'zoomI',
				}
			],
			release_actions: [
				{
					action: 'zoomS',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Zoom Out',
			bank: {
				style: 'text',
				text: 'ZOOM\\nOUT',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0)
			},
			actions: [
				{
					action: 'zoomO',
				}
			],
			release_actions: [
				{
					action: 'zoomS',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Focus Near',
			bank: {
				style: 'text',
				text: 'FOCUS\\nNEAR',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'focusN',
				}
			],
			release_actions: [
				{
					action: 'focusS',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Focus Far',
			bank: {
				style: 'text',
				text: 'FOCUS\\nFAR',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'focusF',
				}
			],
			release_actions: [
				{
					action: 'focusS',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Auto Focus',
			bank: {
				style: 'text',
				text: 'AUTO\\nFOCUS',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
				latch: true
			},
			actions: [
				{
					action: 'focusM',
					options: {
						bol: 0,
					}
				}
			],
			release_actions: [
				{
					action: 'focusM',
					options: {
						bol: 1,
					}
				}
			]
		},
		{
			category: 'Lens',
			label: 'Focus Lock',
			bank: {
				style: 'text',
				text: 'FOCUS\\nLOCK',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'focusL',
				}
			]
		},
		{
			category: 'Lens',
			label: 'Focus Unlock',
			bank: {
				style: 'text',
				text: 'FOCUS\\nUNLOCK',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'focusU',
				}
			]
		},
		{
			category: 'Exposure',
			label: 'Exposure Mode',
			bank: {
				style: 'text',
				text: 'EXP\\nMODE',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
				latch: true
			},
			actions: [
				{
					action: 'expM',
					options: {
						bol: 0,
					}
				}
			],
			release_actions: [
				{
					action: 'expM',
					options: {
						bol: 1,
					}
				}
			]
		},
		{
			category: 'Exposure',
			label: 'Iris Up',
			bank: {
				style: 'text',
				text: 'IRIS\\nUP',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'irisU',
				}
			]
		},
		{
			category: 'Exposure',
			label: 'Iris Down',
			bank: {
				style: 'text',
				text: 'IRIS\\nDOWN',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'irisD',
				}
			]
		},
		{
			category: 'Exposure',
			label: 'Shutter Up',
			bank: {
				style: 'text',
				text: 'Shut\\nUP',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'shutU',
				}
			]
		},
		{
			category: 'Exposure',
			label: 'Shutter Down',
			bank: {
				style: 'text',
				text: 'Shut\\nDOWN',
				size: '18',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'shutD',
				}
			]
		},
		{
			category: 'White balance',
			label: 'Auto White Balance',
			bank: {
				style: 'text',
				text: 'WB\\nAUTO',
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'wb',
					options: {
						val: 'automatic',
					}
				}
			]
		},
		{
			category: 'White balance',
			label: 'Indoor White Balance',
			bank: {
				style: 'text',
				text: 'WB\\nINDOOR',
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'wb',
					options: {
						val: 'indoor',
					}
				}
			]
		},
		{
			category: 'White balance',
			label: 'Outdoor White Balance',
			bank: {
				style: 'text',
				text: 'WB\\nOUT\\nDOOR',
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'wb',
					options: {
						val: 'outdoor',
					}
				}
			]
		},
		{
			category: 'White balance',
			label: 'One Push White Balance',
			bank: {
				style: 'text',
				text: 'WB\\nONE PUSH',
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'wb',
					options: {
						val: 'onepush',
					}
				}
			]
		},
		{
			category: 'White balance',
			label: 'Trigger One Push White Balance',
			bank: {
				style: 'text',
				text: 'WB\\nTRIGGER\\nONE PUSH',
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'wbOPT',
				}
			]
		}
	];

var save;
for (save = 0; save < 255; save++) {
	if (save<90 || save>99){
		presets.push({
			category: 'Save Preset',
			label: 'Save Preset '+ parseInt(save) ,
			bank: {
				style: 'text',
				text: 'SAVE\\nPSET\\n' + parseInt(save) ,
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'savePset',
					options: {
					val: ('0' + save.toString(16)).substr(-2,2),
					}
				}
			]
		});
	}
}

var recall;
for (recall = 0; recall < 255; recall++) {
	if (recall<90 || recall>99){
		presets.push({
			category: 'Recall Preset',
			label: 'Recall Preset '+ parseInt(recall) ,
			bank: {
				style: 'text',
				text: 'Recall\\nPSET\\n' + parseInt(recall) ,
				size: '14',
				color: '16777215',
				bgcolor: self.rgb(0,0,0),
			},
			actions: [
				{
					action: 'recallPset',
					options: {
					val: ('0' + recall.toString(16)).substr(-2,2),
					}
				}
			]
		});
	}
}

	self.setPresetDefinitions(presets);
};


instance.prototype.actions = function(system) {
	var self = this;

	self.system.emit('instance_actions', self.id, {
		'left':           { label: 'Pan Left' },
		'right':          { label: 'Pan Right' },
		'up':             { label: 'Tilt Up' },
		'down':           { label: 'Tilt Down' },
		'upLeft':         { label: 'Up Left' },
		'upRight':        { label: 'Up Right' },
		'downLeft':       { label: 'Down Left' },
		'downRight':      { label: 'Down Right' },
		'stop':           { label: 'P/T Stop' },
		'home':           { label: 'P/T Home' },
		'ptSpeedS':       {
			label: 'P/T Speed',
			options: [
				{
					type: 'dropdown',
					label: 'speed setting',
					id: 'speed',
					choices: SPEED
				}
			]
		},
		'ptSpeedU':       { label: 'P/T Speed Up'},
		'ptSpeedD':       { label: 'P/T Speed Down'},
		'ptSlow':         {
			label: 'P/T Slow Mode',
			options: [
				{
					type: 'dropdown',
					label: 'Slow Mode On/Off',
					id: 'bol',
					choices: [ { id: '1', label: 'Off' }, { id: '0', label: 'On' } ]
				}
			]
		 },
		'zoomI':          { label: 'Zoom In' },
		'zoomO':          { label: 'Zoom Out' },
		'zoomS':          { label: 'Zoom Stop' },
		'focusN':         { label: 'Focus Near' },
		'focusF':         { label: 'Focus Far' },
		'focusS':         { label: 'Focus Stop' },
		'focusM':         {
			label: 'Focus Mode',
			options: [
				{
					type: 'dropdown',
					label: 'Auto / Manual Focus',
					id: 'bol',
					choices: [ { id: '0', label: 'Auto Focus' }, { id: '1', label: 'Manual Focus' } ]
				}
			]
		},
		'focusL':         { label: 'Focus Lock' },
		'focusU':         { label: 'Focus Unlock' },
		'expM':           {
			label: 'Exposure Mode',
			options: [
				{
					type: 'dropdown',
					label: 'Mode setting',
					id: 'val',
					choices: [
						{ id: '0', label: 'Full auto' },
						{ id: '1', label: 'Manual' },
						{ id: '2', label: 'Shutter Pri' },
						{ id: '3', label: 'Iris Pri' },
						{ id: '4', label: 'Bright mode (manual)' }
					]
				}
			]
		},
		'irisU':          { label: 'Iris Up' },
		'irisD':          { label: 'Iris Down' },
		'irisS':          {
			label: 'Set Iris',
			options: [
				{
					type: 'dropdown',
					label: 'Iris setting',
					id: 'val',
					choices: IRIS
				}
			]
		},
		'shutU':          { label: 'Shutter Up' },
		'shutD':          { label: 'Shutter Down' },
		'shutS':          {
			label: 'Set Shutter',
			options: [
				{
					type: 'dropdown',
					label: 'Shutter setting',
					id: 'val',
					choices: SHUTTER
				}
			]
		},
		'savePset':       {
			label: 'Save Preset',
			options: [
				{
					type: 'dropdown',
					label: 'Preset Nr.',
					id: 'val',
					choices: PRESET,
					minChoicesForSearch: 1
				}
			]
		},
		'recallPset':     {
			label: 'Recall Preset',
			options: [
				{
					type: 'dropdown',
					label: 'Preset Nr.',
					id: 'val',
					choices: PRESET,
					minChoicesForSearch: 1
				}
			]
		},
		'speedPset':      {
			label: 'Preset Drive Speed',
			options: [
				{
					type: 'dropdown',
					label: 'Preset Nr.',
					id: 'val',
					choices: PRESET,
					minChoicesForSearch: 1
				},
				{
					type: 'dropdown',
					label: 'speed setting',
					id: 'speed',
					choices: SPEED,
					minChoicesForSearch: 1
				}
			]
		},
		'power': {
			label: 'power camera',
			options: [
				{
					type: 'dropdown',
					label: 'power on/off',
					id: 'bool',
					choices: [{ id: 'off', label:'off'},{ id: 'on', label:'on'}]
				}
			]
		},
		'wb': {
			label: 'White balance',
			options: [
				{
					type: 'dropdown',
					label: 'Mode',
					id: 'val',
					choices: [
						{ id: 'automatic', label:'Automatic' },
						{ id: 'indoor', label:'Indoor' },
						{ id: 'outdoor', label:'Outdoor' },
						{ id: 'onepush', label:'One Push' },
						{ id: 'manual', label:'Manual' }
					]
				}
			]
		},
		'wbOPT': {
			label: 'White balance one push trigger',
		},
		'awbS':           {
			label: 'Auto white balance sensitivity',
			options: [
				{
					type: 'dropdown',
					label: 'Sensitivity',
					id: 'val',
					choices: [{ id: 0, label:'High'},{ id: 1, label:'Normal'},{ id: 2, label:'Low'}]
				}
			]
		},
		'custom':           {
			label: 'Custom command',
			options: [
				{
					type: 'textinput',
					label: 'Please refer to PTZOptics VISCA over IP command document for valid commands.',
					id: 'custom',
					regex: '/^81 ?([0-9a-fA-F]{2} ?){3,13}[fF][fF]$/',
					width: 6
				}
			]
		}
	});
}

instance.prototype.sendVISCACommand = function(str) {
	var self = this;

	if (self.tcp !== undefined) {
		var buf = Buffer.from(str, 'binary');
		self.tcp.send(buf);
	}
};

instance.prototype.action = function(action) {
	var self = this;
	var opt = action.options;
	var cmd = ''

	var panspeed = String.fromCharCode(parseInt(self.ptSpeed, 16) & 0xFF);
	var tiltspeed = String.fromCharCode(Math.min(parseInt(self.ptSpeed, 16), 0x14) & 0xFF);

	switch (action.action) {

		case 'left':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x01\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'right':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x02\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'up':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x03\x01\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'down':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x03\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'upLeft':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x01\x01\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'upRight':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x02\x01\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'downLeft':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x01\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'downRight':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x02\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'stop':
			cmd = '\x81\x01\x06\x01' + panspeed + tiltspeed + '\x03\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'home':
			cmd = '\x81\x01\x06\x04\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'ptSpeedS':
			self.ptSpeed = opt.speed;

			var idx = -1;
			for (var i = 0; i < SPEED.length; ++i) {
				if (SPEED[i].id == self.ptSpeed) {
					idx = i;
					break;
				}
			}
			if (idx > -1) {
				self.ptSpeedIndex = idx;
			}
			debug(self.ptSpeed + ' == ' + self.ptSpeedIndex)
			break;

		case 'ptSpeedD':
			if (self.ptSpeedIndex == 23) {
				self.ptSpeedIndex = 23;
			}
			else if (self.ptSpeedIndex < 23) {
				self.ptSpeedIndex ++;
			}
			self.ptSpeed = SPEED[self.ptSpeedIndex].id
			break;

		case 'ptSpeedU':
			if (self.ptSpeedIndex == 0) {
				self.ptSpeedIndex = 0;
			}
			else if (self.ptSpeedIndex > 0) {
				self.ptSpeedIndex--;
			}
			self.ptSpeed = SPEED[self.ptSpeedIndex].id
			break;

		case 'zoomI':
			cmd = '\x81\x01\x04\x07\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'zoomO':
			cmd = '\x81\x01\x04\x07\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'zoomS':
			cmd = '\x81\x01\x04\x07\x00\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'focusN':
			cmd = '\x81\x01\x04\x08\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'focusF':
			cmd = '\x81\x01\x04\x08\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'focusS':
			cmd = '\x81\x01\x04\x08\x00\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'focusM':
			if (opt.bol == 0){
				cmd = '\x81\x01\x04\x38\x02\xFF';
			}
			if (opt.bol == 1){
				cmd = '\x81\x01\x04\x38\x03\xFF';
			}
			self.sendVISCACommand(cmd);
			break;

		case 'focusL':
			cmd = '\x81\x0A\x04\x68\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'focusU':
			cmd = '\x81\x0A\x04\x68\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'expM':
			if (opt.val == 0){
				cmd = '\x81\x01\x04\x39\x00\xFF';
			}
			if (opt.val == 1){
				cmd = '\x81\x01\x04\x39\x03\xFF';
			}
			if (opt.val == 2){
				cmd = '\x81\x01\x04\x39\x0A\xFF';
			}
			if (opt.val == 3){
				cmd = '\x81\x01\x04\x39\x0B\xFF';
			}
			if (opt.val == 4){
				cmd = '\x81\x01\x04\x39\x0D\xFF';
			}
			self.sendVISCACommand(cmd);
			break;

		case 'irisU':
			cmd = '\x81\x01\x04\x0B\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'irisD':
			cmd = '\x81\x01\x04\x0B\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'irisS':
			var cmd = Buffer.from('\x81\x01\x04\x4B\x00\x00\x00\x00\xFF', 'binary');
			cmd.writeUInt8((parseInt(opt.val,16) & 0xF0) >> 4, 6);
			cmd.writeUInt8(parseInt(opt.val,16) & 0x0F, 7);
			self.sendVISCACommand(cmd);
			debug('cmd=',cmd);
			break;

		case 'shutU':
			cmd = '\x81\x01\x04\x0A\x02\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'shutD':
			cmd = '\x81\x01\x04\x0A\x03\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'shutS':
			var cmd = Buffer.from('\x81\x01\x04\x4A\x00\x00\x00\x00\xFF', 'binary');
			cmd.writeUInt8((parseInt(opt.val,16) & 0xF0) >> 4, 6);
			cmd.writeUInt8(parseInt(opt.val,16) & 0x0F, 7);
			self.sendVISCACommand(cmd);
			debug('cmd=',cmd);
			break;

		case 'savePset':
			cmd ='\x81\x01\x04\x3F\x01' + String.fromCharCode(parseInt(opt.val,16) & 0xFF) + '\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'recallPset':
			cmd ='\x81\x01\x04\x3F\x02' + String.fromCharCode(parseInt(opt.val,16) & 0xFF) + '\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'speedPset':
			cmd ='\x81\x01\x06\x01' + String.fromCharCode(parseInt(opt.val,16) & 0xFF) + String.fromCharCode(parseInt(opt.speed,16) & 0xFF) + '\xFF';
			self.sendVISCACommand(cmd);
			break;
		
		case 'power':
			if(opt.bool == 'off') {
				cmd = '\x81\x01\x04\x00\x03\xFF';
			} else {
				cmd = '\x81\x01\x04\x00\x02\xFF';
			}
			self.sendVISCACommand(cmd);
			break;

		case 'wb':
			switch (opt.val) {
				case 'automatic':
					cmd = '\x81\x01\x04\x35\x00\xFF';
					break;
				case 'indoor':
					cmd = '\x81\x01\x04\x35\x01\xFF';
					break;
				case 'outdoor':
					cmd = '\x81\x01\x04\x35\x02\xFF';
					break;
				case 'onepush':
					cmd = '\x81\x01\x04\x35\x03\xFF';
					break;
				case 'manual':
					cmd = '\x81\x01\x04\x35\x05\xFF';
					break;
			}
			self.sendVISCACommand(cmd);
			break;

		case 'wbOPT':
			cmd = '\x81\x01\x04\x10\x05\xFF';
			self.sendVISCACommand(cmd);
			break;

		case 'awbS':
			switch (opt.val) {
				case 0:
					cmd = '\x81\x01\x04\xA9\x00\xFF';
					break;
				case 1:
					cmd = '\x81\x01\x04\xA9\x01\xFF';
					break;
				case 2:
					cmd = '\x81\x01\x04\xA9\x02\xFF';
					break;
			}
			self.sendVISCACommand(cmd);
			break;

		case 'custom':
			if (typeof opt.custom === 'string' || opt.custom instanceof String) {
				var hexData = opt.custom.replace(/\s+/g, '');
				var tempBuffer = Buffer.from(hexData, 'hex');
				cmd = tempBuffer.toString('binary');

				if ((tempBuffer[0] & 0xF0) === 0x80) {
					self.sendVISCACommand(cmd);
				} else {
					self.log('error', 'Error, command "' + opt.custom + '" does not start with 8');
				}
			}
			break;

	}
};

instance_skel.extendedBy(instance);

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exports = module.exports = instance;