diff --git a/USBStrip/USBStrip.ino b/USBStrip/USBStrip.ino
index efc0934..c64a458 100644
--- a/USBStrip/USBStrip.ino
+++ b/USBStrip/USBStrip.ino
@@ -1,44 +1,55 @@
 #include <WS2812.h>
+#include <CapacitiveSensor.h>
 
 #define LEDCount 37
 #define outputPin 11
-WS2812 LED(LEDCount); 
+WS2812 LED(LEDCount);
 cRGB value;
+CapacitiveSensor capv_btn1 = CapacitiveSensor(4, 2);
+bool capv_btn1_state = false;
+int capv_btn1_avg = 0;
 
 void setup() {
   //Serial.begin(230400);
   Serial.begin(115200);
   LED.setOutput(outputPin);
+  capv_btn1.set_CS_AutocaL_Millis(0xFFFFFFFF);
 }
 
 void loop() {
+  //int capv_btn1_v = capv_btn1.capacitiveSensor(1);
+  capv_btn1_avg = (capv_btn1.capacitiveSensor(1) + capv_btn1_avg * 7) / 8;
+  int capv_btn1_v = capv_btn1_avg;
+  if (capv_btn1_v > 60 && !capv_btn1_state) {
+    Serial.write(0x17);
+    Serial.write(0xff);
+    capv_btn1_avg += 600;
+    capv_btn1_state = true;
+  }
+  else if (capv_btn1_v < 25 && capv_btn1_state) {
+    Serial.write(0x17);
+    Serial.write(0x00);
+    capv_btn1_state = false;
+  }
+
   if (Serial.available() > 0) {
     byte command = Serial.read();
-    //Serial.write(command);
     if (command == 0x11) {
       LED.sync();
-      
-      Serial.write(0x1a);
+      //Serial.write(0x1a);
     }
     else if (command == 0x12) {
       while (Serial.available() < 4) {
       }
-      
       int pos = Serial.read();
       value.r = Serial.read();
       value.g = Serial.read();
       value.b = Serial.read();
-      
       LED.set_crgb_at(pos, value);
-  
-      //Serial.write(pos);
-      //Serial.write(value.r);
-      //Serial.write(value.g);
-      //Serial.write(value.b);
-      Serial.write(0x1b);
+      //Serial.write(0x1b);
     }
     else {
-      Serial.write(0x1e);
+      //Serial.write(0x1e);
     }
   }
 }
diff --git a/index.js b/index.js
index ba59116..d2b9377 100644
--- a/index.js
+++ b/index.js
@@ -5,6 +5,9 @@ var serialPort = new SerialPort(process.argv[2], {
 	  baudrate: 115200
 });
 
+var lightstate = false;
+
+var tT;
 var leds = 37;
 
 var toHue = function (s) {
@@ -94,7 +97,7 @@ var slide = function (color, cb, time) {
 		i++;
 		if (i < leds) {
 			var c = color(i);
-			setTimeout(function () {
+			tT = setTimeout(function () {
 				writeLED(i, c[0], c[1], c[2], function () {
 					update(loop);	
 				});
@@ -113,7 +116,28 @@ var fade = function (color, cb) {
 
 serialPort.on("open", function () {
 	serialPort.on("data", function (d) {
-		//console.log(d);
+		var i = 0;
+		var read = () => {
+			if (d.length == i)
+				return null;
+			return d[i++];
+		};
+		var cmd;
+		while (cmd = read()) {
+			if (cmd == 0x17) {
+				var n = read();
+				if (n === null) {
+					break;
+				}
+				var state = n == 0xff;
+				// state
+				//state slide(() => { return [0, 0, 0]; }, () => {}, 20);
+				if (state) {
+					lightstate = !lightstate;
+					lightstate ? setLightness(0) : setLightness(1);
+				}
+			}
+		}
 	});
 	/*
 	setTimeout(function () {
@@ -185,7 +209,6 @@ app.get("/set/:i", function (req, res) {
 		}
 		if (Math.floor(toHue(state) / sp * 2) == Math.floor(i / sp * 2)) {
 			i = toHue(state);
-			console.log(i);
 			clearInterval(h);
 		}
 		flash(function (la) {
@@ -197,11 +220,13 @@ app.get("/set/:i", function (req, res) {
 
 });
 
-app.get("/lightness/set/:i", function (req, res) {
-	res.status(200).end();
+var lightnessT;
+var setLightness = (l) => {
+	clearTimeout(lightnessT);
+	clearTimeout(tT);
 
 	var from = lightness;
-	var to = req.params.i * 1;
+	var to = l * 1;
 
 	var a = function () {
 		flash(function (la) {
@@ -209,17 +234,28 @@ app.get("/lightness/set/:i", function (req, res) {
 		}, function () {
 			lightness = lightness + (to - from) * 0.02;
 			if ((to - from) < 0 ? lightness > to : lightness < to) {
-				setTimeout(function () {
+				lightnessT = setTimeout(function () {
 					a();
 				}, 16);
 			}
 			else {
 				lightness = to;
+				lightnessT = setTimeout(() => {
+					flash(() => { 
+						return hslToRgb(toHue(state) / 256, 1, lightness);
+					}, () => {
+					});
+				}, 16);
 			}
 		});
 	};
 
 	a();
+};
+app.get("/lightness/set/:i", function (req, res) {
+	res.status(200).end();
+	
+	setLightness(req.params.i);
 });
 
 app.get("/demo1/start", function (req, res) {
@@ -336,5 +372,4 @@ app.get("/demo2/stop", function (req, res) {
 
 	demo2 = false;
 });
-
 app.listen(8026);
diff --git a/package.json b/package.json
index 17cebf6..c09b455 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,6 @@
   },
   "dependencies": {
     "express": "^4.12.4",
-    "serialport": "^2.0.5"
+    "serialport": "^3.1.1"
   }
 }