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-rwxr-xr-xcores/arduino/Arduino.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index 7f2fc05..07216f9 100755
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -40,6 +40,11 @@ extern "C"{
#define FALLING 2
#define RISING 3
+#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+#define DEFAULT 0
+#define EXTERNAL 1
+#define INTERNAL 2
+#else
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define INTERNAL1V1 2
#define INTERNAL2V56 3
@@ -48,6 +53,7 @@ extern "C"{
#endif
#define DEFAULT 1
#define EXTERNAL 0
+#endif
// undefine stdlib's abs if encountered
#ifdef abs