1 files changed, 12 insertions, 0 deletions
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index e877970..ebdbe9a 100755
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -142,6 +142,18 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
 #define NOT_A_PIN 0
 #define NOT_A_PORT 0
 
+#define PA 1
+#define PB 2
+#define PC 3
+#define PD 4
+#define PE 5
+#define PF 6
+#define PG 7
+#define PH 8
+#define PJ 10
+#define PK 11
+#define PL 12
+
 #define NOT_ON_TIMER 0
 #define TIMER0A 1
 #define TIMER0B 2