diff --git a/down.svg b/down.svg
deleted file mode 100644
index 120c39c..0000000
--- a/down.svg
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns"
-	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="16px" height="16px"
-	 viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
-<title></title>
-<g id="Icons_with_numbers">
-	<g id="Group" transform="translate(-48.000000, -144.000000)">
-		<path id="Shape" fill="#808080" d="M54,153v-6h4v6h2l-4,5l-4-5H54L54,153z M56,144c-4.5,0-8,3.5-8,8s3.5,8,8,8s8-3.5,8-8
-			S60.5,144,56,144L56,144z"/>
-	</g>
-</g>
-</svg>
diff --git a/index.html b/index.html
index 2845ad8..3200bb0 100644
--- a/index.html
+++ b/index.html
@@ -21,8 +21,9 @@
 
 	#range { font-size:12px; font-family:"Arial"; color:#3a3; margin:10px 0; display:block; }
 	#range.warning { color:#f00; }
-	#range-meter { height:20px; background:#000; text-align:center; width:200px; margin:10px auto; overflow:hidden; }
-	#range-meter-bar { display:inline-block; height:20px; width:0; background:#555; margin:0; }
+	#range-meter { height:20px; background:#000; text-align:center; width:200px; margin:10px auto; overflow:hidden; border-radius:2px; }
+	#range-meter-bar { display:inline-block; height:20px; width:0; background:#555; margin:0; border-radius:2px; }
+	#range-meter.warning { background:#400; }
 	#range-meter.warning #range-meter-bar { background:#f00; }
 </style>
 </head>
@@ -44,18 +45,14 @@ <h1>Node Robot</h1>
 	<button class="key_right">&rarr;</button>
 </div>
 
-<section></section>
-
 <script type="text/javascript">
 var prev;
-
 var url = window.location.href.replace('index.html','').replace('8080/','8080');
 
 function _up() {
 	if (prev == 'up') return;
 	prev = 'up';
 	$('.key_up').addClass('key_active');
-	$('section').html('<img src="up.svg" />');
 	$.post(url + '/forward');
 }
 
@@ -63,7 +60,6 @@ <h1>Node Robot</h1>
 	if (prev == 'left') return;
 	prev = 'left';
 	$('.key_left').addClass('key_active');
-	$('section').html('<img src="left.svg" />');
 	$.post(url + '/left');
 }
 
@@ -71,7 +67,6 @@ <h1>Node Robot</h1>
 	if (prev == 'down') return;
 	prev = 'down';
 	$('.key_down').addClass('key_active');
-	$('section').html('<img src="down.svg" />');
 	$.post(url + '/reverse');
 }
 
@@ -79,14 +74,12 @@ <h1>Node Robot</h1>
 	if (prev == 'right') return;
 	prev = 'right';
 	$('.key_right').addClass('key_active');
-	$('section').html('<img src="right.svg" />');
 	$.post(url + '/right');
 }
 
 function _stop() {
 	prev = null;
 	$('.key_active').removeClass('key_active');
-	$('section').html('');
 	$.post(url + '/stop');
 }
 
@@ -142,7 +135,6 @@ <h1>Node Robot</h1>
 
 var client = new nes.Client(url.replace('http','ws'));
 client.connect(function (err) {
-	if (err) console.log(err);
     client.onBroadcast = function (update) {
 		$('#range').html(update.toFixed(2) + " cm");
 		var width = parseFloat(update) / 500 * $('#range-meter').width();
@@ -154,7 +146,6 @@ <h1>Node Robot</h1>
 		}
     }
 });
-
 </script>
 </body>
 </html>
diff --git a/left.svg b/left.svg
deleted file mode 100644
index b26f72b..0000000
--- a/left.svg
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns"
-	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="16px" height="16px"
-	 viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
-<title></title>
-<g id="Icons_with_numbers">
-	<g id="Group" transform="translate(-192.000000, -576.000000)">
-		<path id="Shape" fill="#808080" d="M200,576c-4.418,0-8,3.582-8,8c0,4.418,3.582,8,8,8c4.418,0,8-3.582,8-8
-			C208,579.582,204.418,576,200,576L200,576z M202,582h2v2v5h-2v-5h-4v3l-3.957-4.103L198,579v3H202L202,582z"/>
-	</g>
-</g>
-</svg>
diff --git a/readme.txt b/readme.txt
deleted file mode 100644
index 4f2d4b1..0000000
--- a/readme.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-# collegare bluetooth
-sudo rfcomm bind 0 98:D3:31:40:04:6B
-
-# verificare stato bluetooth
-frcomm show 0
-
-# disconnettere bluetooth
-sudo rfcomm release 0
diff --git a/right.svg b/right.svg
deleted file mode 100644
index e0578a2..0000000
--- a/right.svg
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns"
-	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="16px" height="16px"
-	 viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
-<title></title>
-<g id="Icons_with_numbers">
-	<g id="Group" transform="translate(-144.000000, -576.000000)">
-		<path id="Shape" fill="#808080" d="M152,576c4.418,0,8,3.582,8,8c0,4.418-3.582,8-8,8c-4.418,0-8-3.582-8-8
-			C144,579.582,147.582,576,152,576L152,576z M150,582h-2v2v5h2v-5h4v3l3.957-4.103L154,579v3H150L150,582z"/>
-	</g>
-</g>
-</svg>
diff --git a/start.sh b/start.sh
index 21d12bd..62645bb 100755
--- a/start.sh
+++ b/start.sh
@@ -1,9 +1,9 @@
 #!/bin/bash
-echo "Connecting bluetooth"
+echo "Connecting bluetooth ..."
 sudo rfcomm release 0
 sudo rfcomm connect 0 98:D3:31:40:04:6B &
-echo "Network interface:"
+echo "Network interface ..."
 ifconfig wlan0
-sleep 15
-echo "Connecting robot"
+sleep 10
+echo "Connecting robot ..."
 sudo node robot.js
diff --git a/up.svg b/up.svg
deleted file mode 100644
index dbdb2fa..0000000
--- a/up.svg
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns"
-	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="16px" height="16px"
-	 viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
-<title></title>
-<g id="Icons_with_numbers">
-	<g id="Group" transform="translate(0.000000, -144.000000)">
-		<path id="Shape" fill="#808080" d="M6,151v6h4v-6h2l-4-5l-4,5H6L6,151z M8,160c-4.5,0-8-3.5-8-8s3.5-8,8-8s8,3.5,8,8
-			S12.5,160,8,160L8,160z"/>
-	</g>
-</g>
-</svg>