diff --git a/lib/channel/GwChannelList.cpp b/lib/channel/GwChannelList.cpp
index 635799a1..5465ea92 100644
--- a/lib/channel/GwChannelList.cpp
+++ b/lib/channel/GwChannelList.cpp
@@ -63,8 +63,8 @@ void GwChannelList::begin(bool fallbackSerial){
     GwChannel *channel=NULL;
     //usb
     if (! fallbackSerial){
-        GwSerial *usb=new GwSerial(NULL,0,USB_CHANNEL_ID);
-        usb->setup(config->getInt(config->usbBaud),3,1);
+        GwSerial *usb=new GwSerial(NULL,&USBSerial,USB_CHANNEL_ID);
+        USBSerial.begin(config->getInt(config->usbBaud));
         logger->setWriter(new GwSerialLog(usb,config->getBool(config->usbActisense)));
         logger->prefix="GWSERIAL:";
         channel=new GwChannel(logger,"USB",USB_CHANNEL_ID);
@@ -133,9 +133,9 @@ void GwChannelList::begin(bool fallbackSerial){
         );
     if (serialtx != -1 || serialrx != -1 ){
         LOG_DEBUG(GwLog::LOG,"creating serial interface rx=%d, tx=%d",serialrx,serialtx);
-        GwSerial *serial=new GwSerial(logger,1,SERIAL1_CHANNEL_ID,serCanRead);
-        int rt=serial->setup(config->getInt(config->serialBaud,115200),serialrx,serialtx);
-        LOG_DEBUG(GwLog::LOG,"starting serial returns %d",rt);
+        Serial1.begin(config->getInt(config->serialBaud,115200),SERIAL_8N1,serialrx,serialtx);
+        GwSerial *serial=new GwSerial(logger,&Serial1,SERIAL1_CHANNEL_ID,serCanRead);
+        LOG_DEBUG(GwLog::LOG,"starting serial1 ");
         channel=new GwChannel(logger,"SER",SERIAL1_CHANNEL_ID);
         channel->setImpl(serial);
         channel->begin(
diff --git a/lib/hardware/GwHardware.h b/lib/hardware/GwHardware.h
index 84df3501..fa133ced 100644
--- a/lib/hardware/GwHardware.h
+++ b/lib/hardware/GwHardware.h
@@ -13,6 +13,7 @@
 */
 #ifndef _GWHARDWARE_H
 #define _GWHARDWARE_H
+#include <HardwareSerial.h>
 #include "GwUserTasks.h"
 
 //general definitions for M5AtomLite
@@ -30,6 +31,7 @@
   #define GWBUTTON_PULLUPDOWN
   #define BOARD_LEFT1 GPIO_NUM_22
   #define BOARD_LEFT2 GPIO_NUM_19
+  #define USBSerial Serial
 #endif
 //general definitiones for M5AtomS3
 #ifdef PLATFORM_BOARD_M5STACK_ATOMS3
@@ -52,6 +54,12 @@
 #ifdef PLATFORM_BOARD_M5STICK_C
   #define GROOVE_PIN_1 GPIO_NUM_32
   #define GROOVE_PIN_2 GPIO_NUM_31
+  #define USBSerial Serial
+#endif
+
+//NodeMCU 32 S
+#ifdef PLATFORM_BOARD_NODEMCU_32S
+  #define USBSerial Serial
 #endif
 
 #ifdef BOARD_M5ATOM
@@ -157,4 +165,5 @@
   #define ESP32_CAN_RX_PIN GROOVE_PIN_2
 #endif
 
+
 #endif
diff --git a/lib/serial/GwSerial.cpp b/lib/serial/GwSerial.cpp
index 6f358563..93278812 100644
--- a/lib/serial/GwSerial.cpp
+++ b/lib/serial/GwSerial.cpp
@@ -40,12 +40,11 @@ class GwSerialStream: public Stream{
 
 
 
-GwSerial::GwSerial(GwLog *logger, int num, int id,bool allowRead)
+GwSerial::GwSerial(GwLog *logger, Stream *s, int id,bool allowRead):serial(s)
 {
-    LOG_DEBUG(GwLog::DEBUG,"creating GwSerial %p port %d for %d",this,(int)num,id);
+    LOG_DEBUG(GwLog::DEBUG,"creating GwSerial %p id %d",this,id);
     this->id=id;
     this->logger = logger;
-    this->num = num;
     String bufName="Ser(";
     bufName+=String(id);
     bufName+=")";
@@ -54,21 +53,15 @@ GwSerial::GwSerial(GwLog *logger, int num, int id,bool allowRead)
     if (allowRead){
         this->readBuffer=new GwBuffer(logger, GwBuffer::RX_BUFFER_SIZE,bufName+"rd");
     }
-    this->serial=new HardwareSerial(num);
+    buffer->reset("init");
+    initialized=true;
 }
 GwSerial::~GwSerial()
 {
     delete buffer;
     if (readBuffer) delete readBuffer;
-    delete serial;
-}
-int GwSerial::setup(int baud, int rxpin, int txpin)
-{
-    serial->begin(baud,SERIAL_8N1,rxpin,txpin);
-    buffer->reset(F("init"));
-    initialized = true;
-    return 0;
 }
+
 bool GwSerial::isInitialized() { return initialized; }
 size_t GwSerial::enqueue(const uint8_t *data, size_t len, bool partial)
 {
diff --git a/lib/serial/GwSerial.h b/lib/serial/GwSerial.h
index b3880fc7..d7b01ed5 100644
--- a/lib/serial/GwSerial.h
+++ b/lib/serial/GwSerial.h
@@ -10,19 +10,17 @@ class GwSerial : public GwChannelInterface{
         GwBuffer *buffer;
         GwBuffer *readBuffer=NULL;
         GwLog *logger; 
-        int num;
         bool initialized=false;
         bool allowRead=true;
         GwBuffer::WriteStatus write();
         int id=-1;
         int overflows=0;
         size_t enqueue(const uint8_t *data, size_t len,bool partial=false);
-        HardwareSerial *serial;
+        Stream *serial;
     public:
         static const int bufferSize=200;
-        GwSerial(GwLog *logger,int num,int id,bool allowRead=true);
+        GwSerial(GwLog *logger,Stream *stream,int id,bool allowRead=true);
         ~GwSerial();
-        int setup(int baud,int rxpin,int txpin);
         bool isInitialized();
         virtual size_t sendToClients(const char *buf,int sourceId,bool partial=false);
         virtual void loop(bool handleRead=true,bool handleWrite=true);