diff --git a/main.lua b/main.lua
index 29fc813..2c0f00c 100644
--- a/main.lua
+++ b/main.lua
@@ -1,7 +1,5 @@
 -- Main Module
 
-displayword = {}
-
 function startSetupMode()
     tmr.stop(0)
     tmr.stop(1)
@@ -56,12 +54,12 @@ function displayTime()
      else
         words.briPercent=nil
      end
-     dofile("displayword.lc")
-     if (displayword ~= nil) then
-        ledBuf = displayword.generateLEDs(words, color, color1, color2, color3, color4)
+     dp = dofile("displayword.lc")
+     if (dp ~= nil) then
+        ledBuf = dp.generateLEDs(words, color, color1, color2, color3, color4)
         print("Local time : " .. time.year .. "-" .. time.month .. "-" .. time.day .. " " .. time.hour .. ":" .. time.minute .. ":" .. time.second .. " char: " .. tostring(displayword.data.drawnCharacters))
      end
-     displayword = nil
+     dp = nil
      if (ledBuf ~= nil) then
      --if lines 4 to 6 are inverted due to hardware-fuckup, unfuck it here
 	  if ((inv46 ~= nil) and (inv46 == "on")) then
diff --git a/simulation/config.lua b/simulation/config.lua
index 7c38a41..bb7c61c 100644
--- a/simulation/config.lua
+++ b/simulation/config.lua
@@ -12,3 +12,4 @@ color4=string.char(tonumber(green2*0.2), 0, 0)
 colorBg=string.char(0,0,0) -- black is the default background color
 sntpserverhostname="ptbtime1.ptb.de"
 timezoneoffset=1
+dim="on"
diff --git a/simulation/src/de/c3ma/ollo/WS2812Simulation.java b/simulation/src/de/c3ma/ollo/WS2812Simulation.java
index 1c4cff9..147a20e 100644
--- a/simulation/src/de/c3ma/ollo/WS2812Simulation.java
+++ b/simulation/src/de/c3ma/ollo/WS2812Simulation.java
@@ -13,6 +13,7 @@ import org.luaj.vm2.lib.jse.JsePlatform;
 import de.c3ma.ollo.mockup.DoFileFunction;
 import de.c3ma.ollo.mockup.ESP8266Adc;
 import de.c3ma.ollo.mockup.ESP8266File;
+import de.c3ma.ollo.mockup.ESP8266GPIO;
 import de.c3ma.ollo.mockup.ESP8266Net;
 import de.c3ma.ollo.mockup.ESP8266Node;
 import de.c3ma.ollo.mockup.ESP8266Time;
@@ -46,11 +47,13 @@ public class WS2812Simulation implements LuaSimulation {
 		globals.load(espTmr);
 		globals.load(espFile);
 		globals.load(espNode);
+		globals.load(new ESP8266GPIO());
 		globals.load(adc);
 		globals.load(new ESP8266Wifi());
 		globals.load(new ESP8266Net());
 		globals.load(new ESP8266Time());
 		globals.set("dofile", doFile);
+		adc.setADC(50);
 
 		try {
 			File tempFile = File.createTempFile("NodemcuSimuFile", "");
diff --git a/simulation/src/de/c3ma/ollo/mockup/DoFileFunction.java b/simulation/src/de/c3ma/ollo/mockup/DoFileFunction.java
index c9e6250..a7b5660 100644
--- a/simulation/src/de/c3ma/ollo/mockup/DoFileFunction.java
+++ b/simulation/src/de/c3ma/ollo/mockup/DoFileFunction.java
@@ -26,14 +26,13 @@ public class DoFileFunction extends OneArgFunction {
     public LuaValue call(LuaValue luaFilename) {
         String filename = luaFilename.checkjstring();
         
-        System.out.println("[Nodemcu] dofile " + filename);
+        //System.out.println("[Nodemcu] dofile " + filename);
         
         File f = new File(workingDir.getAbsolutePath() + File.separator + filename);
         
         if (f.exists()) {
             LuaValue chunk = this.globals.loadfile(f.getAbsolutePath());
-            chunk.call();
-            return LuaValue.valueOf(true);
+            return chunk.call();
         } else {
             return LuaValue.valueOf(false);
         }
diff --git a/simulation/src/de/c3ma/ollo/mockup/ESP8266GPIO.java b/simulation/src/de/c3ma/ollo/mockup/ESP8266GPIO.java
new file mode 100644
index 0000000..5212d00
--- /dev/null
+++ b/simulation/src/de/c3ma/ollo/mockup/ESP8266GPIO.java
@@ -0,0 +1,51 @@
+package de.c3ma.ollo.mockup;
+
+import org.luaj.vm2.LuaTable;
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.Varargs;
+import org.luaj.vm2.lib.TwoArgFunction;
+import org.luaj.vm2.lib.VarArgFunction;
+
+/**
+ * created at 08.05.2019 - 21:33:04<br />
+ * creator: ollo<br />
+ * project: ESP8266GPIO Emulation<br />
+ * $Id: $<br />
+ * @author ollo<br />
+ */
+public class ESP8266GPIO extends TwoArgFunction {
+
+	@Override
+	public LuaValue call(LuaValue modname, LuaValue env) {
+		env.checkglobals();
+        final LuaTable gpio = new LuaTable();
+        gpio.set("mode", new Mode());
+        gpio.set("read", new Read(this));
+        env.set("gpio", gpio);
+        env.get("package").get("loaded").set("gpio", gpio);
+        return gpio;
+	}
+	
+	private class Read extends VarArgFunction {
+		
+		private ESP8266GPIO mGpio = null;
+		
+		Read(ESP8266GPIO gpio) {
+			this.mGpio = gpio;
+		}
+    	
+        public Varargs invoke(Varargs varargs) {
+        	int pin = varargs.toint(0);
+        	//FIXME add here something to simulate a pin pressing
+            return LuaValue.valueOf((int)1);
+        }
+    }
+	
+	private class Mode extends VarArgFunction {
+    	
+        public Varargs invoke(Varargs varargs) {
+        	System.out.println("[GPIO] mode GPIO" + varargs.toint(0) + "=" + varargs.toint(1));
+            return LuaValue.valueOf(true);
+        }
+    }
+}