diff --git a/examples/GPIO/wiring.h b/examples/GPIO/wiring.h
index 2baa44f25bb6e2873e8383805ccefe030939b160..3b7d0d74e0a1a8f1d41fca115b4aaeb3901cc8e2 100644
--- a/examples/GPIO/wiring.h
+++ b/examples/GPIO/wiring.h
@@ -14,30 +14,15 @@ enum lowhigh {
 
 enum GPIOports{
 	port_A,
-	port_B,
 	port_C,
 	port_D,
 	port_none,
 };
 
 enum GPIOpins{
-	pin_A0,
-	pin_A1,
+	pin_A1 = 1,
 	pin_A2,
-	pin_A3,
-	pin_A4,
-	pin_A5,
-	pin_A6,
-	pin_A7,
-	pin_B0,
-	pin_B1,
-	pin_B2,
-	pin_B3,
-	pin_B4,
-	pin_B5,
-	pin_B6,
-	pin_B7,
-	pin_C0,
+	pin_C0 = 16,
 	pin_C1,
 	pin_C2,
 	pin_C3,
@@ -45,7 +30,7 @@ enum GPIOpins{
 	pin_C5,
 	pin_C6,
 	pin_C7,
-	pin_D0,
+	pin_D0 = 24,
 	pin_D1,
 	pin_D2,
 	pin_D3,