diff --git a/utility/pin_shield_1.h b/utility/pin_shield_1.h
index ef330ea..2a15734 100644
--- a/utility/pin_shield_1.h
+++ b/utility/pin_shield_1.h
@@ -96,14 +96,14 @@
   #define D8_PIN  0
   #define D9_PORT GPIOA
   #define D9_PIN  1
-  #define D10_PORT GPIOA
-  #define D10_PIN  15
+  #define D10_PORT GPIOB //GPIOA
+  #define D10_PIN  12    //15
   #define D11_PORT GPIOB
-  #define D11_PIN  5
+  #define D11_PIN  15    //5
   #define D12_PORT GPIOB
-  #define D12_PIN  4
+  #define D12_PIN  14    //4
   #define D13_PORT GPIOB
-  #define D13_PIN  3
+  #define D13_PIN  13    //3
   #define A0_PORT GPIOB
   #define A0_PIN  5
   #define A1_PORT GPIOB