diff --git a/app/index.html b/app/index.html
index 28d8275..f7d4391 100644
--- a/app/index.html
+++ b/app/index.html
@@ -236,7 +236,7 @@
           </div>
           <div class="spacer">
             <input type="text" id="intval" name="intval" placeholder="INTVAL3 URL"/>
-            <input type="radio" name="camera_type" value="intval" />
+            <input type="radio" name="camera_type" value="intval" onclick="devices.intval();" />
           </div>
           <div>
             <h4>Light</h4>
diff --git a/app/lib/intval/index.js b/app/lib/intval/index.js
index d7a836d..1e6d726 100644
--- a/app/lib/intval/index.js
+++ b/app/lib/intval/index.js
@@ -1,16 +1,14 @@
 'use strict'
 
 const req = require('request')
-const devices = {}
 
 class Intval {
-	constructor (device, url) {
-		devices[device] = `http://${url}`
+	constructor (url) {
+		this._baseUrl = `http://${url}`
 	}
-	move (device, cb) {
+	move (cb) {
 		const timeStart = +new Date()
-		const baseUrl = devices[device]
-		const url = `${baseUrl}/frame`
+		const url = `${this._baseUrl}/frame`
 		//console.log(url)
 		req(url, (err, res, body) => {
 			let ms = (+new Date()) - timeStart
@@ -20,10 +18,9 @@ class Intval {
 			cb(ms)
 		})
 	}
-	setDir (device, dir, cb) {
+	setDir (dir, cb) {
 		const timeStart = +new Date()
-		const baseUrl = devices[device]
-		const url = `${baseUrl}/dir?dir=${dir}`
+		const url = `${this._baseUrl}/dir?dir=${dir}`
 		//console.log(url)
 		req(url, (err, res, body) => {
 			let ms = (+new Date()) - timeStart
@@ -34,10 +31,9 @@ class Intval {
 		})
 
 	}
-	setExposure (device, exposure, cb) {
+	setExposure (exposure, cb) {
 		const timeStart = +new Date()
-		const baseUrl = devices[device]
-		const url = `${baseUrl}/exposure?exposure=${exposure}`
+		const url = `${this._baseUrl}/exposure?exposure=${exposure}`
 		//console.log(url)
 		req(url, (err, res, body) => {
 			let ms = (+new Date()) - timeStart
@@ -47,6 +43,24 @@ class Intval {
 			cb(ms)
 		})
 	}
+	connect (cb) {
+		const timeStart = +new Date()
+		const url = `${this._baseUrl}/status`
+		const opts = {
+			method : 'GET',
+			uri : url,
+			timeout: 5000
+		}
+
+		req(opts, (err, res, body) => {
+			let ms = (+new Date()) - timeStart
+			if (err) {
+				//console.error(err)
+				return cb(err, ms)
+			}
+			cb(null, ms, body)
+		})
+	}
 }
 
 module.exports = Intval
\ No newline at end of file
diff --git a/app/lib/ui/devices.js b/app/lib/ui/devices.js
index 25055c6..91e3250 100644
--- a/app/lib/ui/devices.js
+++ b/app/lib/ui/devices.js
@@ -1,3 +1,4 @@
+
 var devices = {};
 
 devices.init = function () {
@@ -10,20 +11,63 @@ devices.listen = function () {
 	'use strict';
 	
 	ipcRenderer.on('ready', devices.ready);
+	ipcRenderer.on('intval', devices.intvalCb);
 };
 devices.ready = function (event, arg) {
 	'use strict';
 	let opt;
+	let devs = [];
 	gui.spinner(false);
 	gui.overlay(false);
 	for (let i in arg) {
+		if (arg[i] !== '/dev/fake') {
+			devs.push(arg[i]);
+		}
 		opt = $('<option>');
 		opt.val(arg[i]);
 		opt.text(arg[i]);
 		$(`#${i}_device`).empty();
 		$(`#${i}_device`).append(opt);
 	}
+	if (devs.length > 0) {
+		$('#devices').empty();
+		for (let i of devs) {
+			opt = $('<option>');
+			opt.val(i);
+			opt.text(i);
+			$('#devices').append(opt);
+		}
+	}
 	return event.returnValue = true;
 };
 
+devices.intval = function () {
+	'use strict';
+	const url = $('#intval').val()
+	let proceed = false
+	let obj = {
+		connect: true,
+		url : url
+	}
+	if ( url !== '' && typeof url !== 'undefined') {
+		proceed = confirm(`Are you sure you want to connect to INTVAL3 ${url}?`)
+	} else {
+		alert('Cannot connect to INTVAL3 url as entered.')
+	}
+	
+	if (proceed) {
+		gui.overlay(true);
+		gui.spinner(true);
+		ipcRenderer.send('intval', obj)
+	} else {
+		$('input[name=camera_type][value=arduino]').prop('checked', 'checked');
+	}
+};
+
+devices.intvalCb = function (a, b) {
+	'use strict';
+	console.dir(a);
+	console.dir(b);
+};
+
 module.exports = devices;
\ No newline at end of file
diff --git a/app/main.js b/app/main.js
index cee90b1..2a36926 100644
--- a/app/main.js
+++ b/app/main.js
@@ -157,8 +157,6 @@ var distinguishDevices = function (devices) {
 			}
 		})
 	}
-	console.dir(mcopy.settings)
-	console.dir(checklist)
 
 	checklist = devices.map(device => {
 		return next => {
@@ -171,6 +169,7 @@ var distinguishDevices = function (devices) {
 			})
 		}
 	})
+
 	async.series(checklist, () => {
 		//done checking devices
 		if (!connected.projector) {
@@ -307,7 +306,9 @@ proj.end = function (cmd, id, ms) {
 	mainWindow.webContents.send('proj', {cmd: cmd, id : id, ms: ms})
 }
 
-var cam = {}
+var cam = {
+	intval : null
+}
 cam.state = {
 	dir : true //default dir
 }
@@ -358,8 +359,24 @@ cam.listen = function () {
 			cam.move(arg.frame, arg.id)
 		}
 		event.returnValue = true
-	});
-};
+	})
+	ipcMain.on('intval', (event, arg) => {
+		console.dir(arg)
+		if (arg.connect) {
+			cam.intval = new Intval(arg.url)
+			/*cam.intval.connect((err, ms, state) => {
+				if (err) {
+					log.info(`Cannot connect to ${arg.url}`, 'INTVAL', true, true)
+					cam.intval = null
+				} else {
+					log.info()
+				}
+			})*/
+		} else if (arg.disconnect) {
+			cam.intval = null
+		}
+	})
+}
 cam.end = function (cmd, id, ms) {
 	var message = ''
 	if (cmd === mcopy.cfg.arduino.cmd.cam_forward) {