diff --git a/include/http/index.html b/include/http/index.html
index cd85bc5..6dbf624 100644
--- a/include/http/index.html
+++ b/include/http/index.html
@@ -23,9 +23,13 @@
         </label>
       </div>
       <div class="pwm">
-        <label id="l_pwm"></label>
+        <label id="label_pwm"></label>
         <input type="range" min="1" max="100" value="50" class="rangeslider" id="range1">
       </div>
+      <div class="timer">
+        <label id="label_timer"></label>
+        <input type="range" min="1" max="100" value="50" class="rangeslider" id="timer_range">
+      </div>
     </div>
     
    
diff --git a/src/main.cpp b/src/main.cpp
index 201b3d4..b11b8f5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,25 +3,29 @@
 
 #include "PCA9685.h"
 
+#define ESP12_LED 2
+#define NODEMCU_LED 16
+
 extern "C" {
 #include "user_interface.h"
 }
 os_timer_t Timer1;         // Verwaltungsstruktur des Timers
 
-uint32_t c;
-
+int c;
+bool toggle = false;
 uint32_t m=0;
 void timerCallback(void *pArg)
 {
   *((int *) pArg) += 1;
-  
-  Serial.print("hallo\n");
-  Serial.println(micros()-m);
+  toggle = !toggle;
+  digitalWrite(NODEMCU_LED, toggle);
+
+  Serial.print("[");
+  Serial.print(micros()-m);
+  Serial.print("] timerCallback\n");
   m = micros();
-} 
+}
 
-
-// Änderung
 // OTA & WEB
 #include "wifi_credentials.h"
 #include <ESP8266WiFi.h>
@@ -162,8 +166,6 @@ void setup_pwm_pca9685() {
   pwmController.init(B000000);        // Address pins A5-A0 set to B000000
   pwmController.setPWMFrequency(200); // Default is 200Hz, supports 24Hz to 1526Hz
 
-  pwmController.setChannelPWM(0, 128 << 4); // Set PWM to 128/255, but in 4096 land
-  
   Serial.println(pwmController.getChannelPWM(0)); // Should output 2048, which is 128 << 4
 }
 
@@ -171,6 +173,9 @@ void setup() {
   Serial.begin(115200);
   Serial.println(F("Booting ...."));
 
+  pinMode(NODEMCU_LED, OUTPUT);
+  pinMode(ESP12_LED, OUTPUT);
+
   Wire.begin();                       // Wire must be started first
   Wire.setClock(400000);              // Supported baud rates are 100kHz, 400kHz, and 1000kHz
 
@@ -183,7 +188,7 @@ void setup() {
     ESP.restart();
   }
  
-  os_timer_setfn(&Timer1, timerCallback, NULL);
+  os_timer_setfn(&Timer1, timerCallback, &c);
   os_timer_arm(&Timer1, 1000, true);
 
   Serial.println("Ready");
@@ -224,7 +229,7 @@ uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval, uint8_t
     return 1;
 }
 
-#define LEDCOUNT 13
+#define LEDCOUNT 16
 
 void ledsequence(uint8_t direction, uint8_t onoff, uint8_t factor){
   static int8_t led = 0;