diff --git a/utility/pin_shield_1.h b/utility/pin_shield_1.h
index 515a2fc..074cce6 100644
--- a/utility/pin_shield_1.h
+++ b/utility/pin_shield_1.h
@@ -743,6 +743,57 @@
 #define PIN_INPUT(port, pin)  (port).DIR.reg &= ~(1u<<(pin))
 #define PIN_READ(port, pin)   (port).IN.reg & (1u<<(pin))
 
+
+//####################################### DUE ############################
+#elif defined(__SAM3X8E__)
+  #include <sam.h>
+  #define D0_PORT PIOA
+  #define D0_PIN  8
+  #define D1_PORT PIOA
+  #define D1_PIN  9
+  #define D2_PORT PIOB
+  #define D2_PIN  25
+  #define D3_PORT PIOC
+  #define D3_PIN  28
+  #define D4_PORT PIOC   //also PA29
+  #define D4_PIN  26
+  #define D5_PORT PIOC
+  #define D5_PIN  25
+  #define D6_PORT PIOC
+  #define D6_PIN  24
+  #define D7_PORT PIOC
+  #define D7_PIN  23
+  #define D8_PORT PIOC
+  #define D8_PIN  22
+  #define D9_PORT PIOC
+  #define D9_PIN  21
+  #define D10_PORT PIOC  //also PA28
+  #define D10_PIN  29
+  #define D11_PORT PIOD
+  #define D11_PIN  7
+  #define D12_PORT PIOD
+  #define D12_PIN  8
+  #define D13_PORT PIOB
+  #define D13_PIN  27
+  #define A0_PORT PIOA
+  #define A0_PIN  16
+  #define A1_PORT PIOA
+  #define A1_PIN  24
+  #define A2_PORT PIOA
+  #define A2_PIN  23
+  #define A3_PORT PIOA
+  #define A3_PIN  22
+  #define A4_PORT PIOA
+  #define A4_PIN  6
+  #define A5_PORT PIOA
+  #define A5_PIN  4
+// Shield Control macros.
+#define PIN_LOW(port, pin)    (port)->PIO_CODR = (1<<(pin))
+#define PIN_HIGH(port, pin)   (port)->PIO_SODR = (1<<(pin))
+#define PIN_OUTPUT(port, pin) (port)->PIO_OER = (1<<(pin))
+#define PIN_INPUT(port, pin)  (port)->PIO_ODR &= ~(1u<<(pin))
+#define PIN_READ(port, pin)   (port)->PIO_PDSR & (1u<<(pin))
+
 
 #elif defined(__AVR_ATxmegaA4U__)
   #include <avr/io.h>
diff --git a/utility/pin_shield_8.h b/utility/pin_shield_8.h
index ab4552b..8680341 100644
--- a/utility/pin_shield_8.h
+++ b/utility/pin_shield_8.h
@@ -435,6 +435,38 @@
                       PORTA.WRCONFIG.reg = (DMASK>>16) | (1<<17) | (1<<28) | (1<<30) | (1<<31); \
                         }       
 #endif
+
+//####################################### DUE ############################
+#elif defined(__SAM3X8E__)      //regular UNO shield on DUE
+ // configure macros for data bus
+#define BMASK         (1<<25)
+#define CMASK         (0xBF << 21)
+#define write_8(x)   {  PIOB->PIO_CODR = BMASK; PIOC->PIO_CODR = CMASK; \
+                        PIOB->PIO_SODR = (((x) & (1<<2)) << 23); \
+                        PIOC->PIO_SODR = (((x) & (1<<0)) << 22) \
+                                       | (((x) & (1<<1)) << 20) \
+                                       | (((x) & (1<<3)) << 25) \
+                                       | (((x) & (1<<4)) << 22) \
+                                       | (((x) & (1<<5)) << 20) \
+                                       | (((x) & (1<<6)) << 18) \
+                                       | (((x) & (1<<7)) << 16); \
+					 }
+
+#define read_8()      ( ((PIOC->PIO_PDSR & (1<<22)) >> 22)\
+                      | ((PIOC->PIO_PDSR & (1<<21)) >> 20)\
+                      | ((PIOB->PIO_PDSR & (1<<25)) >> 23)\
+                      | ((PIOC->PIO_PDSR & (1<<28)) >> 25)\
+                      | ((PIOC->PIO_PDSR & (1<<26)) >> 22)\
+                      | ((PIOC->PIO_PDSR & (1<<25)) >> 20)\
+                      | ((PIOC->PIO_PDSR & (1<<24)) >> 18)\
+                      | ((PIOC->PIO_PDSR & (1<<23)) >> 16)\
+                      )
+#define setWriteDir() { PIOB->PIO_OER = BMASK; PIOC->PIO_OER = CMASK; }
+#define setReadDir()  { \
+                          PMC->PMC_PCER0 = (1 << ID_PIOB)|(1 << ID_PIOC);\
+						  PIOB->PIO_ODR = BMASK; PIOC->PIO_ODR = CMASK;\
+						}
+
 #else
 #error MCU unselected
 #endif        // MCUs