diff --git a/APED/app/src/main/java/com/example/aped/MainActivity.java b/APED/app/src/main/java/com/example/aped/MainActivity.java
index ce937f4..96f1d79 100644
--- a/APED/app/src/main/java/com/example/aped/MainActivity.java
+++ b/APED/app/src/main/java/com/example/aped/MainActivity.java
@@ -4,6 +4,7 @@ import android.Manifest;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
diff --git a/APED/app/src/main/java/com/example/aped/ui/all_IOs/AllIOsFragment.java b/APED/app/src/main/java/com/example/aped/ui/all_IOs/AllIOsFragment.java
index 20bd346..f43fc95 100644
--- a/APED/app/src/main/java/com/example/aped/ui/all_IOs/AllIOsFragment.java
+++ b/APED/app/src/main/java/com/example/aped/ui/all_IOs/AllIOsFragment.java
@@ -14,11 +14,8 @@ import androidx.fragment.app.Fragment;
 import com.android.volley.Response;
 import com.example.aped.MainActivity;
 import com.example.aped.R;
-
 import org.json.JSONException;
 import org.json.JSONObject;
-
-import java.util.Dictionary;
 import java.util.List;
 
 
diff --git a/APED/app/src/main/java/com/example/aped/ui/all_IOs/MainListViewAdapter.java b/APED/app/src/main/java/com/example/aped/ui/all_IOs/MainListViewAdapter.java
index ebf6f4d..85992bd 100644
--- a/APED/app/src/main/java/com/example/aped/ui/all_IOs/MainListViewAdapter.java
+++ b/APED/app/src/main/java/com/example/aped/ui/all_IOs/MainListViewAdapter.java
@@ -5,20 +5,16 @@ import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
-import android.widget.ListView;
 import android.widget.TextView;
-
 import com.android.volley.Response;
 import com.example.aped.MainActivity;
 import com.example.aped.R;
-
 import org.json.JSONException;
 import org.json.JSONObject;
-
-import java.io.LineNumberReader;
 import java.util.ArrayList;
 import java.util.List;
 
+
 public class MainListViewAdapter extends BaseAdapter {
 
     private MainActivity mainActivity;
@@ -34,7 +30,6 @@ public class MainListViewAdapter extends BaseAdapter {
 
     @Override
     public int getCount() {
-        int temp = mainActivity.xml.getDeviceNames().size();
         return mainActivity.xml.getDeviceNames().size();
     }
 
@@ -92,17 +87,25 @@ public class MainListViewAdapter extends BaseAdapter {
         //textViewPin.setText(((List<String>) (mainActivity.xml.getPort(mainActivity.xml.getDeviceNames().get(i))).get("pins")).get(0));
 
 
-        mainActivity.uebergabe.read(mainActivity.xml.getDeviceNames().get(i), new Response.Listener<JSONObject>() {
+
+
+        mainActivity.uebergabe.read(mainActivity.xml.getDeviceNames().get(i),
+                new Response.Listener<JSONObject>() {
             @Override
             public void onResponse(final JSONObject response) {
                 try {
                     JSONObject state = response.getJSONObject("state");
                     List<String> pinValues = new ArrayList<>();
-                    for(String pinName: ((List<String>)mainActivity.xml.getPort(mainActivity.xml.getDeviceNames().get(i)).get("pins"))){
+                    for(String pinName: ((List<String>)mainActivity.xml.
+                            getPort(mainActivity.xml.getDeviceNames().get(i)).
+                            get("pins"))){
                         pinValues.add(state.getString(pinName));
                     }
-                    PinView pinView = new PinView(mainActivity,mainActivity.xml.getDeviceNames().get(i), pinValues);
-                    for(int j = 0; j < ((List<String>)mainActivity.xml.getPort(mainActivity.xml.getDeviceNames().get(i)).get("pins")).size(); j++) {
+                    PinView pinView = new PinView(mainActivity,mainActivity.xml.
+                            getDeviceNames().get(i), pinValues);
+                    for(int j = 0; j < ((List<String>)mainActivity.xml.
+                            getPort(mainActivity.xml.getDeviceNames().get(i)).
+                            get("pins")).size(); j++) {
                         linearLayoutPin.addView(pinView.getView(j));
                     }
                 } catch (JSONException e) {
diff --git a/APED/app/src/main/java/com/example/aped/ui/all_IOs/PinView.java b/APED/app/src/main/java/com/example/aped/ui/all_IOs/PinView.java
index 547c37d..a228454 100644
--- a/APED/app/src/main/java/com/example/aped/ui/all_IOs/PinView.java
+++ b/APED/app/src/main/java/com/example/aped/ui/all_IOs/PinView.java
@@ -1,13 +1,15 @@
 package com.example.aped.ui.all_IOs;
 
+import android.content.Intent;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
-
+import android.widget.Toast;
+import com.android.volley.Response;
 import com.example.aped.MainActivity;
 import com.example.aped.R;
-
+import org.json.JSONException;
+import org.json.JSONObject;
 import java.util.List;
 
 public class PinView {
@@ -32,16 +34,78 @@ public class PinView {
         TextView textViewPin = (TextView) view.findViewById(
                 R.id.textPin);
 
-        String pinState = pinValues.get(i);
-
-        if(pinState.equals("1")) {
-            image=R.drawable.green_signal;
-        }else if (pinState.equals("0")) {
-            image = R.drawable.red_signal;
-        } else{ image = R.drawable.off_signal; }
+        switch (pinValues.get(i)){
+            case "1":
+                image=R.drawable.green_signal;
+                break;
+            case "0":
+                image=R.drawable.red_signal;
+                break;
+            default:
+                image=R.drawable.off_signal;
+                break;
+        }
         imageView.setImageResource(image);
 
+
         textViewPin.setText(((List<String>) (mainActivity.xml.getPort(deviceName)).get("pins")).get(i));
+
+
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                if((mainActivity.xml.getPort(deviceName)).get("protocol").toString().equals("DO"))  {
+                    try {//                                                        Werte erst aktualisieren
+                        String setState = null;
+                        String test = pinValues.get(i);
+                        if(pinValues.get(i).equals("0")) {
+                             setState = "{\"output\": \"1\"}";
+                        }else{
+                            setState = "{\"output\": \"0\"}";
+                        }
+                        JSONObject jsonObject = new JSONObject(setState);
+                        mainActivity.uebergabe.write(deviceName, jsonObject, new Response.Listener<JSONObject>() {
+                            @Override
+                            public void onResponse(JSONObject response) {
+                                try {
+                                    if (!jsonObject.equals(response)) {
+                                        //                                       Fehler
+                                    }
+                                    switch (response.getInt("output")){
+                                        case 1:
+                                            image = R.drawable.green_signal;
+                                            break;
+                                        case 0:
+                                            image = R.drawable.red_signal;
+                                            break;
+                                        default:
+                                            image = R.drawable.off_signal;
+                                            break;
+                                    }
+                                    imageView.setImageResource(image);
+
+                                } catch (JSONException e) {
+                                    e.printStackTrace();
+                                }
+                            }
+                        });
+                    } catch (JSONException e) {
+                        e.printStackTrace();
+                    }
+
+                }else{
+                    Toast.makeText(mainActivity, deviceName
+                                    + " is not a output " ,
+                            Toast.LENGTH_SHORT).show();
+                }
+                Intent intentneustart = mainActivity.getIntent();
+                mainActivity.finish();
+                mainActivity.startActivity(intentneustart);
+            }
+        });
+
+
         return view;
     }
 }