diff --git a/esp-videoswitcher.ino b/esp-videoswitcher.ino
index 81149e3..fb55e05 100644
--- a/esp-videoswitcher.ino
+++ b/esp-videoswitcher.ino
@@ -12,6 +12,7 @@
 SoftwareSerial swSer(D2, D1);
 int currentnumber = 0;
 int inputbytes[4];
+int commandbytes[4];
 String output = "";
 String output2 = "";
 
@@ -19,7 +20,25 @@ HomieNode switchNode("switch", "switch");
 
 bool switchHandler(const HomieRange& range, const String& value) {
   Homie.getLogger() << "switch " << ": " << value << endl;
-  switchNode.setProperty("switch").send(value);
+  
+  if (sscanf(value, "%d %d %d %d", &commandbytes[0], &commandbytes[1], &commandbytes[2], &commandbytes[3]) == 4)
+  {
+      // Nur wenn wirklich 4 Werte übernommen wurden
+      switchNode.setProperty("switch").send(value);
+      // Sende an das Gerät
+      swSer.write(commandbytes[0]);
+      swSer.write(commandbytes[1]);
+      swSer.write(commandbytes[2]);
+      swSer.write(commandbytes[3]);
+  }
+  else
+  {
+      commandbytes[0] = 0;
+      commandbytes[1] = 0;
+      commandbytes[2] = 0;
+      commandbytes[3] = 0;
+      switchNode.setProperty("switch").send("ERROR");
+  }
   return true;
 }
 
@@ -37,8 +56,6 @@ void setup() {
 
   ArduinoOTA.setHostname(Homie.getConfiguration().deviceId);
   ArduinoOTA.begin();
-  
-  
 }
 
 void loop() {
@@ -65,11 +82,7 @@ void loop() {
       switchNode.setProperty("switchevent").send(output2);
       switchNode.setProperty("input").send(String(inputbytes[1]-128, DEC));
       switchNode.setProperty("output").send(String(inputbytes[2]-128, DEC));      
-      // Einfache Interpretation
-//      Serial.print("Von ");
-//      Serial.print(String(inputbytes[2]-128, DEC));
-//      Serial.print(" zu ");
-//      Serial.println(String(inputbytes[1]-128, DEC));
+
       currentnumber = 0;
       inputbytes[0] = 0;
       inputbytes[1] = 0;
@@ -84,8 +97,4 @@ void loop() {
       currentnumber++;
     }
   }
-//  while (Serial.available() > 0) {
-//    swSer.write(Serial.read());
-//  }
-
 }