diff --git a/platformio.ini b/platformio.ini
index c8231b5..78a249a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -55,7 +55,7 @@ lib_deps = ${common.lib_deps}
     painlessMesh
     ESP8266mDNS
     ArduinoOTA
-upload_port = 192.168.1.247
+;upload_port = 192.168.1.247
 
 [env:meshMqttBridge]
 src_filter = +<*> -<examples/> +<examples/meshMqttBridge/>
diff --git a/src/JsonStruct.h b/src/JsonStruct.h
new file mode 100644
index 0000000..5a65912
--- /dev/null
+++ b/src/JsonStruct.h
@@ -0,0 +1,43 @@
+#ifndef __JSON_STRUCT__
+#define __JSON_STRUCT__
+
+#include <ArduinoJson.h>
+#include <FS.h>
+
+
+struct JsonStruct {
+    SprocketConfig soricketConfig;
+    MeshConfig meshConfig;
+    int valid = 0;
+    
+    // ------------------------------------------------------------------------------------------
+
+    virtual int verifyJsonObject(JsonObject& json){
+        return json.success();
+            //&& json.containsKey(JSON_DOMAIN)
+    };
+    virtual String toJsonString();
+    String getAttrFromJson(JsonObject& json, const char* attr){
+        if(json.containsKey(attr)){
+            return json[attr];
+        }
+        return "";
+    }
+    int getIntAttrFromJson(JsonObject& json, const char* attr){
+        if(json.containsKey(attr)){
+            return json[attr];
+        }
+        return 0;
+    }
+    // Map a json object to this struct.
+    virtual int fromJsonObject(JsonObject& json);
+    // Parse a json string and map parsed object
+    int fromJsonString(String& str){
+        //StaticJsonBuffer<200> jsonBuffer;
+        DynamicJsonBuffer jsonBuffer(JSON_ARRAY_SIZE(300));
+        JsonObject& json = jsonBuffer.parseObject(str);
+        return fromJsonObject(json);
+    };
+};
+
+#endif
\ No newline at end of file
diff --git a/src/MeshConfig.h b/src/MeshConfig.h
new file mode 100644
index 0000000..1a1d6e0
--- /dev/null
+++ b/src/MeshConfig.h
@@ -0,0 +1,18 @@
+#ifndef __MESHCONFIG__
+#define __MESHCONFIG__
+
+// FIXME non-mesh config should have it's own struct
+struct MeshConfig {
+    int stationMode;
+    int channel;
+    int meshPort;
+    const char* meshSSID;
+    const char* meshPassword;
+    const char* stationSSID;
+    const char* stationPassword;
+    const char* hostname;
+    uint16_t debugTypes;
+};
+
+
+#endif
\ No newline at end of file
diff --git a/src/MeshNet.cpp b/src/MeshNet.cpp
index 2c35f0c..7c9c30f 100644
--- a/src/MeshNet.cpp
+++ b/src/MeshNet.cpp
@@ -20,9 +20,8 @@ Network* MeshNet::init(){
     return this;
 }
 Network* MeshNet::connectStation(int doConnect) {
-    Serial.println("connect station?");
     if(doConnect){
-        Serial.println("connect station!");
+        Serial.println("connect station");
         mesh.stationManual(config.stationSSID, config.stationPassword);
         mesh.setHostname(config.hostname);
     }
diff --git a/src/MeshNet.h b/src/MeshNet.h
index 97ce245..07d1e4f 100644
--- a/src/MeshNet.h
+++ b/src/MeshNet.h
@@ -10,23 +10,11 @@
 #include <painlessMesh.h>
 #include <WiFiClient.h>
 #include "Network.h"
+#include "MeshConfig.h"
 
 using namespace std;
 using namespace std::placeholders;
 
-// FIXME non-mesh config should have it's own struct
-struct MeshConfig {
-    int stationMode;
-    int channel;
-    int meshPort;
-    const char* meshSSID;
-    const char* meshPassword;
-    const char* stationSSID;
-    const char* stationPassword;
-    const char* hostname;
-    uint16_t debugTypes;
-};
-
 class MeshNet : public Network {
     public:
         painlessMesh mesh;
diff --git a/src/Sprocket.cpp b/src/Sprocket.cpp
index aa3751b..55eab57 100644
--- a/src/Sprocket.cpp
+++ b/src/Sprocket.cpp
@@ -18,6 +18,11 @@ Sprocket* Sprocket::init(SprocketConfig cfg){
 Sprocket* Sprocket::activate() {
     return activate(&scheduler);
 }
+Sprocket* Sprocket::activate(Scheduler* scheduler, Network* network) {
+    // setup plugins
+    setupPlugins(scheduler, network);
+    return this;
+}
 
 Sprocket* Sprocket::join(Network& net){
     Serial.println("join network");
@@ -35,4 +40,25 @@ Sprocket* Sprocket::addTask(Task& tsk){
 
 void Sprocket::loop(){
     scheduler.execute();
+}
+
+
+void Sprocket::addPlugin(Plugin* p){
+    plugins.reserve(1);
+    plugins.push_back(p);
+}
+
+void Sprocket::setupPlugins(Scheduler* scheduler, Network* network){
+    for(Plugin* p : plugins){
+        p->setup(scheduler, network);
+    }
+}
+
+void Sprocket::dispatchMessageToPlugins(MeshMessage msg){
+    if(msg.type != MeshMessage::NONE){ // baaaa
+        for(Plugin* p : plugins){
+            Serial.println("dispatch to plugins");
+            p->onMessage(msg);
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/Sprocket.h b/src/Sprocket.h
index f9a2532..9d3d715 100644
--- a/src/Sprocket.h
+++ b/src/Sprocket.h
@@ -3,11 +3,14 @@
 
 #include <TaskSchedulerDeclarations.h>
 #include <Arduino.h>
+#include <vector>
 #include "FS.h"
 #ifdef ESP32
 #include "SPIFFS.h"
 #endif
 #include "Network.h"
+#include "SprocketConfig.h"
+#include "Plugin.h"
 
 using namespace std;
 using namespace std::placeholders;
@@ -15,16 +18,12 @@ using namespace std::placeholders;
 // FIXME move to some global fnc lib
 #define ARRAY_LENGTH(array) sizeof(array)/sizeof(array[0])
 
-struct SprocketConfig {
-    int startupDelay;
-    int serialBaudRate;
-};
-
 class Sprocket {
     protected:
         Scheduler scheduler;
     public:
         SprocketConfig config;
+        std::vector<Plugin*> plugins;
         Sprocket();
         Sprocket(SprocketConfig);
         Sprocket* init(SprocketConfig);
@@ -33,8 +32,12 @@ class Sprocket {
         virtual void loop();
         virtual Sprocket* activate();
         virtual Sprocket* activate(Scheduler*) { return this; }
-        virtual Sprocket* activate(Scheduler*, Network*) { return this; }
+        virtual Sprocket* activate(Scheduler*, Network*);
         virtual void dispatch( uint32_t from, String &msg ) {}
+
+        void addPlugin(Plugin* p);
+        void setupPlugins(Scheduler* scheduler, Network* network);
+        void dispatchMessageToPlugins(MeshMessage msg);
 };
 
 #endif
\ No newline at end of file
diff --git a/src/SprocketConfig.h b/src/SprocketConfig.h
new file mode 100644
index 0000000..645cf86
--- /dev/null
+++ b/src/SprocketConfig.h
@@ -0,0 +1,9 @@
+#ifndef __SPROCKET_CONFIG__
+#define __SPROCKET_CONFIG__
+
+struct SprocketConfig {
+    int startupDelay;
+    int serialBaudRate;
+};
+
+#endif
\ No newline at end of file
diff --git a/src/base/MeshSprocket.h b/src/base/MeshSprocket.h
index 790323d..5fa77bf 100644
--- a/src/base/MeshSprocket.h
+++ b/src/base/MeshSprocket.h
@@ -7,6 +7,7 @@
 #include <Sprocket.h>
 #include <MeshNet.h>
 #include <base/MeshMessage.h>
+#include <base/MeshSprocketConfig.h>
 #include <plugins/OtaTcpPlugin.cpp>
 #include "config.h"
 
@@ -16,37 +17,15 @@ using namespace std::placeholders;
 class MeshSprocket : public Sprocket {
     public:
         MeshNet* net;
-        std::vector<Plugin*> plugins;
 
         MeshSprocket(SprocketConfig cfg, OtaConfig otaCfg) : Sprocket(cfg) {
             addPlugin(new OtaTcpPlugin(otaCfg));
         }
-        
-        void addPlugin(Plugin* p){
-            plugins.reserve(1);
-            plugins.push_back(p);
-        }
-
-        void setupPlugins(Scheduler* scheduler, Network* network){
-            for(Plugin* p : plugins){
-                p->setup(scheduler, network);
-            }
-        }
-
-        void dispatchMessageToPlugins(MeshMessage msg){
-            if(msg.type != MeshMessage::NONE){ // baaaa
-                for(Plugin* p : plugins){
-                    Serial.println("dispatch to plugins");
-                    p->onMessage(msg);
-                }
-            }
-        }
 
         Sprocket* activate(Scheduler* scheduler, Network* network) {
+            Sprocket::activate(scheduler, network);
             net = static_cast<MeshNet*>(network);
             net->onReceive(bind(&MeshSprocket::dispatch,this, _1, _2));
-            // setup plugins
-            setupPlugins(scheduler, network);
             return this;
         } using Sprocket::activate;
 
diff --git a/src/base/MeshSprocketConfig.h b/src/base/MeshSprocketConfig.h
new file mode 100644
index 0000000..c77d720
--- /dev/null
+++ b/src/base/MeshSprocketConfig.h
@@ -0,0 +1,69 @@
+#ifndef __MESH_SPROCKET_CONFIG__
+#define __MESH_SPROCKET_CONFIG__
+
+#include <Arduino.h>
+#include <ArduinoJson.h>
+#include <FS.h>
+#include "MeshConfig.h"
+#include "SprocketConfig.h"
+#include "JsonStruct.h"
+
+#define JSON_stationMode "stationMode"
+#define JSON_channel "channel"
+#define JSON_meshPort "meshPort"
+#define JSON_meshSSID "meshSSID"
+#define JSON_meshPassword "meshPassword"
+#define JSON_stationSSID "stationSSID"
+#define JSON_stationPassword "stationPassword"
+#define JSON_hostname "hostname"
+
+#define JSON_startupDelay "startupDelay"
+#define JSON_serialBaudRate "serialBaudRate"
+
+struct MeshSprocketConfig : public JsonStruct {
+    SprocketConfig sprocket;
+    MeshConfig mesh;
+    int valid = 0;
+    
+    // ------------------------------------------------------------------------------------------
+    String toJsonString(){
+        //StaticJsonBuffer<200> jsonBuffer;
+        DynamicJsonBuffer jsonBuffer(JSON_ARRAY_SIZE(300));
+        JsonObject& root = jsonBuffer.createObject();
+        root[JSON_stationMode] = mesh.stationMode;
+        root[JSON_channel] = mesh.channel;
+        root[JSON_meshPort] = mesh.meshPort;
+        root[JSON_meshSSID] = mesh.meshSSID;
+        root[JSON_meshPassword] = mesh.meshPassword;
+        root[JSON_stationSSID] = mesh.stationSSID;
+        root[JSON_stationPassword] = mesh.stationPassword;
+        root[JSON_hostname] = mesh.hostname;
+        root[JSON_startupDelay] = sprocket.startupDelay;
+        root[JSON_serialBaudRate] = sprocket.serialBaudRate;
+        String jsonString;
+        root.printTo(jsonString);
+        return jsonString;
+    }
+    // Map a json object to this struct.
+    int fromJsonObject(JsonObject& json){
+        if(!verifyJsonObject(json)){
+            Serial.println("ERROR: cannot parse JSON object");
+            valid = 0;
+            return valid;
+        }
+        mesh.stationMode = getIntAttrFromJson(json, JSON_stationMode);
+        mesh.channel = getIntAttrFromJson(json, JSON_channel);
+        mesh.meshPort = getIntAttrFromJson(json, JSON_meshPort);
+        mesh.meshSSID = getAttrFromJson(json, JSON_meshSSID).c_str();
+        mesh.meshPassword = getAttrFromJson(json, JSON_meshPassword).c_str();
+        mesh.stationSSID = getAttrFromJson(json, JSON_stationSSID).c_str();
+        mesh.stationPassword = getAttrFromJson(json, JSON_stationPassword).c_str();
+        mesh.hostname = getAttrFromJson(json, JSON_hostname).c_str();
+        sprocket.startupDelay = getIntAttrFromJson(json, JSON_startupDelay);
+        sprocket.serialBaudRate = getIntAttrFromJson(json, JSON_serialBaudRate);
+        valid = 1;
+        return valid;
+    };
+};
+
+#endif
\ No newline at end of file
diff --git a/src/plugins/OtaTcpPlugin.cpp b/src/plugins/OtaTcpPlugin.cpp
index 25cc569..f0c9cd1 100644
--- a/src/plugins/OtaTcpPlugin.cpp
+++ b/src/plugins/OtaTcpPlugin.cpp
@@ -36,9 +36,12 @@ class OtaTcpPlugin : public Plugin {
         void onMessage(MeshMessage msg) {
             if(msg.type == MeshMessage::OTA){
                 Serial.println("OTA msg received");
+                WiFi.disconnect();
                 connectUpdateNetwork();
                 enable();
                 //net->mesh.sendBroadcast("my ip:" + WiFi.localIP().toString(), true);
+                //net->mesh.sendBroadcast("gw ip:" + WiFi.gatewayIP().toString(), true);
+                WiFi.gatewayIP().printTo(Serial);
             }
         }
         void setup(Scheduler* userScheduler, Network* network){