diff --git a/src/main.cpp b/src/main.cpp
index 97b729b..0e8bc5b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,6 +3,24 @@
 
 #include "PCA9685.h"
 
+extern "C" {
+#include "user_interface.h"
+}
+os_timer_t Timer1;         // Verwaltungsstruktur des Timers
+
+uint32_t c;
+
+uint32_t m=0;
+void timerCallback(void *pArg)
+{ 
+  *((int *) pArg) += 1;
+  
+  Serial.print("hallo\n");
+  Serial.println(micros()-m);
+  m = micros();
+} 
+
+
 // Änderung
 // OTA & WEB
 #include "wifi_credentials.h"
@@ -149,8 +167,6 @@ void setup_pwm_pca9685() {
   Serial.println(pwmController.getChannelPWM(0)); // Should output 2048, which is 128 << 4
 }
 
-
-
 void setup() {
   Serial.begin(115200);
   Serial.println(F("Booting ...."));
@@ -167,6 +183,9 @@ void setup() {
     ESP.restart();
   }
  
+  os_timer_setfn(&Timer1, timerCallback, &c);
+  os_timer_arm(&Timer1, 1000, true);
+
   Serial.println("Ready");
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
@@ -278,11 +297,6 @@ void loop() {
     onoff = 1;
     direction = 0;    
   }
-  TIMEIF_US("OTA", ArduinoOTA.handle(), 20000);  
-  TIMEIF_US("HTTP", server.handleClient(), 20000);
-
   TIMEIF_US("OTA", ArduinoOTA.handle(), 1000);
-  
   TIMEIF_US("HTTP", server.handleClient(), 1000);
-
 }
\ No newline at end of file