diff --git a/examples/pl2303/pl2303_gps/pl2303_gps.pde b/examples/pl2303/pl2303_gps/pl2303_gps.pde
new file mode 100644
index 00000000..aefc2823
--- /dev/null
+++ b/examples/pl2303/pl2303_gps/pl2303_gps.pde
@@ -0,0 +1,92 @@
+/* USB Host to PL2303-based USB GPS unit interface */
+/* Navibee GM720 receiver - Sirf Star III */
+/* USB support */
+#include <avrpins.h>
+#include <max3421e.h>
+#include <usbhost.h>
+#include <usb_ch9.h>
+#include <Usb.h>
+#include <usbhub.h>
+#include <avr/pgmspace.h>
+#include <address.h>
+/* CDC support */
+#include <cdcacm.h>
+#include <cdcprolific.h>
+/* Debug support */
+#include <printhex.h>
+#include <message.h>
+#include <hexdump.h>
+#include <parsetools.h>
+
+class PLAsyncOper : public CDCAsyncOper
+{
+public:
+    virtual uint8_t OnInit(ACM *pacm);
+};
+
+uint8_t PLAsyncOper::OnInit(ACM *pacm)
+{
+    uint8_t rcode;
+    
+    // Set DTR = 1
+    rcode = pacm->SetControlLineState(1);
+
+    if (rcode)
+    {
+        ErrorMessage<uint8_t>(PSTR("SetControlLineState"), rcode);
+        return rcode;
+    }
+
+    LINE_CODING lc;
+    lc.dwDTERate  = 4800;   //default serial speed of GPS unit  
+    lc.bCharFormat  = 0;
+    lc.bParityType  = 0;
+    lc.bDataBits  = 8;  
+  
+    rcode = pacm->SetLineCoding(&lc);
+
+    if (rcode)
+        ErrorMessage<uint8_t>(PSTR("SetLineCoding"), rcode);
+            
+    return rcode;
+}
+
+USB     Usb;
+//USBHub     Hub(&Usb);
+PLAsyncOper  AsyncOper;
+PL           Pl(&Usb, &AsyncOper);
+
+void setup()
+{
+  Serial.begin( 115200 );
+  Serial.println("Start");
+
+  if (Usb.Init() == -1)
+      Serial.println("OSCOKIRQ failed to assert");
+      
+  delay( 200 ); 
+}
+
+void loop()
+{
+    Usb.Task();
+  
+    if( Usb.getUsbTaskState() == USB_STATE_RUNNING )
+    {  
+       uint8_t rcode;
+       uint8_t  buf[64];    //serial buffer equals Max.packet size of bulk-IN endpoint           
+       uint16_t rcvd = 64;      
+       /* reading the GPS */
+       rcode = Pl.RcvData(&rcvd, buf);
+        if ( rcode && rcode != hrNAK )
+           ErrorMessage<uint8_t>(PSTR("Ret"), rcode);            
+            if( rcvd ) { //more than zero bytes received
+              for( uint16_t i=0; i < rcvd; i++ ) {
+                  Serial.print(buf[i]); //printing on the screen
+              }//for( uint16_t i=0; i < rcvd; i++...              
+            }//if( rcvd
+        //delay(10);            
+    }//if( Usb.getUsbTaskState() == USB_STATE_RUNNING..    
+}
+
+
diff --git a/examples/pl2303/pl2303_tinygps/pl2303_tinygps.pde b/examples/pl2303/pl2303_tinygps/pl2303_tinygps.pde
new file mode 100644
index 00000000..77e30510
--- /dev/null
+++ b/examples/pl2303/pl2303_tinygps/pl2303_tinygps.pde
@@ -0,0 +1,221 @@
+/* USB Host to PL2303-based USB GPS unit interface */
+/* Navibee GM720 receiver - Sirf Star III */
+/* Mikal Hart's TinyGPS library */
+/* test_with_gps_device library example modified for PL2302 access */
+
+/* USB support */
+#include <avrpins.h>
+#include <max3421e.h>
+#include <usbhost.h>
+#include <usb_ch9.h>
+#include <Usb.h>
+#include <usbhub.h>
+#include <avr/pgmspace.h>
+#include <address.h>
+
+/* CDC support */
+#include <cdcacm.h>
+#include <cdcprolific.h>
+
+/* Debug support */
+#include <printhex.h>
+#include <message.h>
+#include <hexdump.h>
+#include <parsetools.h>
+
+#include <TinyGPS.h>
+
+/* This sample code demonstrates the normal use of a TinyGPS object.
+    Modified to be used with USB Host Shield Library r2.0
+    and USB Host Shield 2.0
+*/
+
+class PLAsyncOper : public CDCAsyncOper
+{
+public:
+    virtual uint8_t OnInit(ACM *pacm);
+};
+
+uint8_t PLAsyncOper::OnInit(ACM *pacm)
+{
+    uint8_t rcode;
+    
+    // Set DTR = 1
+    rcode = pacm->SetControlLineState(1);
+
+    if (rcode) {
+        ErrorMessage<uint8_t>(PSTR("SetControlLineState"), rcode);
+        return rcode;
+    }
+
+    LINE_CODING lc;
+    lc.dwDTERate  = 4800;   //default serial speed of GPS unit  
+    lc.bCharFormat  = 0;
+    lc.bParityType  = 0;
+    lc.bDataBits  = 8;  
+  
+    rcode = pacm->SetLineCoding(&lc);
+
+    if (rcode) {
+        ErrorMessage<uint8_t>(PSTR("SetLineCoding"), rcode);
+    }
+            
+    return rcode;
+}
+
+USB     Usb;
+//USBHub     Hub(&Usb);
+PLAsyncOper  AsyncOper;
+PL           Pl(&Usb, &AsyncOper);
+TinyGPS gps;
+
+void gpsdump(TinyGPS &gps);
+bool feedgps();
+void printFloat(double f, int digits = 2);
+
+void setup()
+{
+
+  Serial.begin(115200);
+    
+  Serial.print("Testing TinyGPS library v. "); Serial.println(TinyGPS::library_version());
+  Serial.println("by Mikal Hart");
+  Serial.println();
+  Serial.print("Sizeof(gpsobject) = "); Serial.println(sizeof(TinyGPS));
+  Serial.println();
+  /* USB Initialization */
+  if (Usb.Init() == -1) {
+      Serial.println("OSCOKIRQ failed to assert");
+  }
+      
+  delay( 200 ); 
+}
+
+void loop()
+{
+  Usb.Task();
+  
+  if( Usb.getUsbTaskState() == USB_STATE_RUNNING ) {
+  
+    bool newdata = false;
+    unsigned long start = millis();
+
+    // Every 5 seconds we print an update
+    while (millis() - start < 5000) {
+      if( feedgps()) {
+        newdata = true;
+      }
+    }//while (millis()...
+  
+    if (newdata) {
+      Serial.println("Acquired Data");
+      Serial.println("-------------");
+      gpsdump(gps);
+      Serial.println("-------------");
+      Serial.println();
+    }//if( newdata...
+  }//if( Usb.getUsbTaskState() == USB_STATE_RUNNING...
+}
+
+void printFloat(double number, int digits)
+{
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     Serial.print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  Serial.print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0)
+    Serial.print("."); 
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    int toPrint = int(remainder);
+    Serial.print(toPrint);
+    remainder -= toPrint; 
+  } 
+}
+
+void gpsdump(TinyGPS &gps)
+{
+  long lat, lon;
+  float flat, flon;
+  unsigned long age, date, time, chars;
+  int year;
+  byte month, day, hour, minute, second, hundredths;
+  unsigned short sentences, failed;
+
+  gps.get_position(&lat, &lon, &age);
+  Serial.print("Lat/Long(10^-5 deg): "); Serial.print(lat); Serial.print(", "); Serial.print(lon); 
+  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");
+  
+  feedgps(); // If we don't feed the gps during this long routine, we may drop characters and get checksum errors
+
+  gps.f_get_position(&flat, &flon, &age);
+  Serial.print("Lat/Long(float): "); printFloat(flat, 5); Serial.print(", "); printFloat(flon, 5);
+  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");
+
+  feedgps();
+
+  gps.get_datetime(&date, &time, &age);
+  Serial.print("Date(ddmmyy): "); Serial.print(date); Serial.print(" Time(hhmmsscc): "); Serial.print(time);
+  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");
+
+  feedgps();
+
+  gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
+  Serial.print("Date: "); Serial.print(static_cast<int>(month)); Serial.print("/"); Serial.print(static_cast<int>(day)); Serial.print("/"); Serial.print(year);
+  Serial.print("  Time: "); Serial.print(static_cast<int>(hour)); Serial.print(":"); Serial.print(static_cast<int>(minute)); Serial.print(":"); Serial.print(static_cast<int>(second)); Serial.print("."); Serial.print(static_cast<int>(hundredths));
+  Serial.print("  Fix age: ");  Serial.print(age); Serial.println("ms.");
+  
+  feedgps();
+
+  Serial.print("Alt(cm): "); Serial.print(gps.altitude()); Serial.print(" Course(10^-2 deg): "); Serial.print(gps.course()); Serial.print(" Speed(10^-2 knots): "); Serial.println(gps.speed());
+  Serial.print("Alt(float): "); printFloat(gps.f_altitude()); Serial.print(" Course(float): "); printFloat(gps.f_course()); Serial.println();
+  Serial.print("Speed(knots): "); printFloat(gps.f_speed_knots()); Serial.print(" (mph): ");  printFloat(gps.f_speed_mph());
+  Serial.print(" (mps): "); printFloat(gps.f_speed_mps()); Serial.print(" (kmph): "); printFloat(gps.f_speed_kmph()); Serial.println();
+
+  feedgps();
+
+  gps.stats(&chars, &sentences, &failed);
+  Serial.print("Stats: characters: "); Serial.print(chars); Serial.print(" sentences: "); Serial.print(sentences); Serial.print(" failed checksum: "); Serial.println(failed);
+}
+  
+bool feedgps()
+{
+  uint8_t rcode;
+  uint8_t  buf[64];    //serial buffer equals Max.packet size of bulk-IN endpoint           
+  uint16_t rcvd = 64;       
+    {  
+        /* reading the GPS */
+        rcode = Pl.RcvData(&rcvd, buf);
+         if (rcode && rcode != hrNAK)
+            ErrorMessage<uint8_t>(PSTR("Ret"), rcode);
+            rcode = false;
+            if( rcvd ) { //more than zero bytes received
+              for( uint16_t i=0; i < rcvd; i++ ) {
+                if( gps.encode(buf[i])) { //feed a character to gps object
+                  rcode = true;
+                }//if( gps.encode(buf[i]...
+              }//for( uint16_t i=0; i < rcvd; i++...              
+            }//if( rcvd...
+    }
+  return( rcode );
+}
+