diff --git a/CVReader.ino b/CVReader.ino
index 9b2480d..4314d79 100644
--- a/CVReader.ino
+++ b/CVReader.ino
@@ -1,6 +1,7 @@
 #include "DCC.h"
 #include "DIAG.h"
 #include "DCCEXParser.h"
+#include "WifiInterface.h"
 
 /* this code is here to test the waveform generator and reveal the issues involved in programming track operations.
 
@@ -17,23 +18,27 @@ void myCallback(int result) {
   DIAG(F("\n getting Loco Id callback result=%d"),result); 
 }
 
-DCCEXParser serialParser(Serial);;
-DCCEXParser wifiParser(Serial1);
+DCCEXParser  serialParser;
+DCCEXParser  wifiParser;
 
 void setup() {
   Serial.begin(115200);
-  DCC::begin();
-
+   DCC::begin();
+ // if (WIFI_PORT>0) WifiInterface::setup();
    DIAG(F("\n===== CVReader demonstrating DCC::getLocoId() call ==========\n"));
    DCC::getLocoId(myCallback); // myCallback will be called with the result 
    DIAG(F("\n===== DCC::getLocoId has returned, but wont be executed until we are in loop() ======\n"));
    DIAG(F("\nReady for JMRI commands\n"));
 }
 
-void loop() {
-  DCC::loop(); // required to keep locos running and check powwer
+void loop() {      
+    DCC::loop(); // required to keep locos running and check powwer
 
   // This line passes input on Serial to the DCCEXParser
-  serialParser.loop();
-  wifiParser.loop();
+  serialParser.loop(Serial);
+   
+   if (WIFI_PORT>0) {
+ //    wifiParser=WifiInterface::getSingleClient(wifiParser);
+ //    if (wifiParser) wifiParser->loop();
+  }
 }
diff --git a/Config.h b/Config.h
index bfa4225..2e35479 100644
--- a/Config.h
+++ b/Config.h
@@ -1,6 +1,13 @@
 #ifndef Config_h
 #define Config_h
 
+const int  WIFI_PORT = 0;                         // OR set to zero for no wifi 
+const char WIFI_SSID[] = "BTHub5-M6PT";            // your network SSID (name)
+const char WIFI_PASS[] = "49de8d4862";            // your network password
+const long WIFI_BAUD_RATE=115200;
+const long WIFI_CONNECT_RETRIES=10;
+
+
 // This hardware configuration would normally be setup using a bunch of #ifdefs.
 
 const byte MAIN_POWER_PIN = 3;
diff --git a/DCCEXParser.cpp b/DCCEXParser.cpp
index 41c57f3..a0f7000 100644
--- a/DCCEXParser.cpp
+++ b/DCCEXParser.cpp
@@ -7,17 +7,14 @@
 #include "Sensors.h"
 
 #include "EEStore.h"
+#include "DIAG.h"
 
 const char VERSION[]="99.666";
 
 int DCCEXParser::stashP[MAX_PARAMS];
- bool DCCEXParser::stashBusy;
-     Stream & DCCEXParser::stashStream=Serial;  // keep compiler happy but ovevride in constructor
-
-
-DCCEXParser::DCCEXParser(Stream & myStream) {
-   stream=myStream;
-}
+bool DCCEXParser::stashBusy;
+ 
+ Stream & DCCEXParser::stashStream=Serial;  // keep compiler happy but ovevride in constructor
 
 // This is a JMRI command parser, one instance per incoming stream
 // It doesnt know how the string got here, nor how it gets back.
@@ -25,7 +22,10 @@ DCCEXParser::DCCEXParser(Stream & myStream) {
 // calls the corresponding DCC api.
 // Non-DCC things like turnouts, pins and sensors are handled in additional JMRI interface classes. 
 
-void DCCEXParser::loop() {
+DCCEXParser::DCCEXParser() {}
+
+void DCCEXParser::loop(Stream & stream) {
+  //DIAG(F("\nDCCEXParser Loop in  %d "),stream.available());
   while(stream.available()) {
     if (bufferLength==MAX_BUFFER) {
        bufferLength=0;
@@ -39,13 +39,14 @@ void DCCEXParser::loop() {
     } 
     else if (ch == '>') {
       buffer[bufferLength]='\0';
-      parse(buffer);
+      parse( stream, buffer);
       inCommandPayload = false;
       break;
     } else if(inCommandPayload) {
       buffer[bufferLength++]= ch;
     }
   }
+//DIAG(F(" out\n"));
   }
 
  int DCCEXParser::splitValues( int result[MAX_PARAMS]) {
@@ -92,7 +93,7 @@ void DCCEXParser::loop() {
 }
 
 // See documentation on DCC class for info on this section
-void DCCEXParser::parse(const char *com) {
+void DCCEXParser::parse(Stream & stream, const char *com) {
     (void) EEPROM; // tell compiler not to warn thi is unused
     int p[MAX_PARAMS];  
     int params=splitValues(p); 
@@ -117,15 +118,15 @@ void DCCEXParser::parse(const char *com) {
         return;
 
     case 'T':       // TURNOUT  <T ...> 
-        if (parseT(params,p)) return;
+        if (parseT(stream,params,p)) return;
         break;
 
     case 'Z':       // OUTPUT <Z ...> 
-      if (parseZ(params,p)) return; 
+      if (parseZ(stream,params,p)) return; 
       break; 
 
     case 'S':        // SENSOR <S ...> 
-      if (parseS(params,p)) return; 
+      if (parseS(stream,params,p)) return; 
       break;
     
     case 'w':      // WRITE CV on MAIN <w CAB CV VALUE>
@@ -201,7 +202,7 @@ void DCCEXParser::parse(const char *com) {
        StringFormatter::send(stream, F("<X>"));
 }
 
-bool DCCEXParser::parseZ( int params, int p[]){
+bool DCCEXParser::parseZ( Stream & stream,int params, int p[]){
       
         
     switch (params) {
@@ -232,7 +233,7 @@ bool DCCEXParser::parseZ( int params, int p[]){
 
 
 //===================================
-bool DCCEXParser::parseT( int params, int p[]) {
+bool DCCEXParser::parseT(Stream & stream, int params, int p[]) {
   switch(params){
         case 0:                    // <T>
             return (Turnout::showAll(stream));             break;
@@ -257,7 +258,7 @@ bool DCCEXParser::parseT( int params, int p[]) {
         }
 }
 
-bool DCCEXParser::parseS( int params, int p[]) {
+bool DCCEXParser::parseS( Stream & stream,int params, int p[]) {
      
         switch(params){
 
@@ -281,7 +282,7 @@ bool DCCEXParser::parseS( int params, int p[]) {
 
 
  // CALLBACKS must be static 
-bool DCCEXParser::stashCallback(Stream & stream, int p[MAX_PARAMS]) {
+bool DCCEXParser::stashCallback(Stream & stream,int p[MAX_PARAMS]) {
        if (stashBusy) return false;
        stashBusy=true; 
       stashStream=stream;
diff --git a/DCCEXParser.h b/DCCEXParser.h
index a038d98..d072826 100644
--- a/DCCEXParser.h
+++ b/DCCEXParser.h
@@ -2,23 +2,22 @@
 #define DCCEXParser_h
 struct DCCEXParser
 {
-   DCCEXParser(Stream & myStream);
-   void loop();
+   DCCEXParser();
+   void loop(Stream & pstream);
    private:
   
     static const int MAX_PARAMS=10;  // longest command sent in
     static const int MAX_BUFFER=50;  // longest command sent in
-        
-     Stream & stream;
+     Stream & stream;   
      byte  bufferLength=0;
      bool  inCommandPayload=false;
-     char  buffer[MAX_BUFFER]; 
-     void parse(const char * command);
-     int splitValues( int result[MAX_PARAMS]);
-   
-     bool parseT(int params, int p[]);
-     bool parseZ(int params, int p[]);
-     bool parseS( int params, int p[]);
+     char  buffer[MAX_BUFFER+2]; 
+    int splitValues( int result[MAX_PARAMS]);
+    void parse(Stream & stream, const char * command);
+     
+     bool parseT(Stream & stream, int params, int p[]);
+     bool parseZ(Stream & stream, int params, int p[]);
+     bool parseS(Stream & stream,  int params, int p[]);
 
     
     static bool stashBusy;
diff --git a/StringFormatter.cpp b/StringFormatter.cpp
index 188d435..0f6393f 100644
--- a/StringFormatter.cpp
+++ b/StringFormatter.cpp
@@ -26,13 +26,12 @@ void StringFormatter::send(Stream & stream,const __FlashStringHelper* format, va
     i++;
     c=pgm_read_byte_near(flash+i);
     switch(c) {
-      case '%': stream.write('%'); break;
+      case '%': stream.print('%'); break;
       case 's': stream.print(va_arg(args, char*)); break;
       case 'd': stream.print(va_arg(args, int), DEC); break;
       case 'b': stream.print(va_arg(args, int), BIN); break;
       case 'o': stream.print(va_arg(args, int), OCT); break;
       case 'x': stream.print(va_arg(args, int), HEX); break;
-      case 'c': stream.write(va_arg(args, int)); break;
       case 'f': stream.print(va_arg(args, double), 2); break;
     }
   }
diff --git a/WifiInterface.cpp b/WifiInterface.cpp
new file mode 100644
index 0000000..5849931
--- /dev/null
+++ b/WifiInterface.cpp
@@ -0,0 +1,49 @@
+//
+//#include "WifiInterface.h"
+//#include "Config.h"
+//#include "DIAG.h"
+//
+//
+//WiFiEspServer WifiInterface::server(WIFI_PORT);
+//
+//bool WifiInterface::connected=false;
+//
+//void WifiInterface::setup()
+//{
+//  Serial1.begin(WIFI_BAUD_RATE);    // initialize serial for ESP module
+//  WiFi.init(&Serial1);    // initialize ESP module
+//
+//  // check for the presence of the shield
+//  if (WiFi.status() == WL_NO_SHIELD) {
+//    Serial.println("WiFi shield not present");
+//    return;
+//  }
+//
+//  // attempt to connect to WiFi network
+//  int status = WL_IDLE_STATUS;
+//  for (int retries=0;status != WL_CONNECTED && retries<WIFI_CONNECT_RETRIES; retries++) {
+//    DIAG(F("\nAttempting to connect to WPA SSID: %s\n"),WIFI_SSID);
+//    delay(100);
+//    status = WiFi.begin(WIFI_SSID, WIFI_PASS);
+//  }
+//
+//  if (status==WL_CONNECTED) {
+//       connected=true;
+//  
+//  
+//    // start the web server on port WIFI_PORT 
+//    server.begin();
+//  
+//   // print the SSID of the network you're attached to
+//   DIAG(F("SSID: %s  IP=%s "), WiFi.SSID(), WiFi.localIP());
+//  }
+//}
+//
+//
+//void WifiInterface::loop(DCCEXParser * parser) {
+//  if (!connected) return existing;
+//   if (!client) return existing;
+//   DIAG(F("\nnew Wifi Client connected %s \n"),client.remoteIP());
+//   if (existing) delete existing;  
+//   return new DCCEXParser(client);
+//}
diff --git a/WifiInterface.h b/WifiInterface.h
new file mode 100644
index 0000000..940e31e
--- /dev/null
+++ b/WifiInterface.h
@@ -0,0 +1,19 @@
+//
+//#ifndef WifiInterface_h
+//#define WifiInterface_h
+//#include <WiFiEsp.h> 
+//#include "DCCEXParser.h"
+//
+//class WifiInterface {
+//
+// public:
+//    static void setup();
+//    static DCCEXParser * getSingleClient(DCCEXParser * existing);
+//    
+//  private:
+//    static WiFiEspServer server;
+//    static bool connected;
+//};
+//
+//#endif
+//