1 files changed, 7 insertions, 0 deletions
diff --git a/src/main.h b/src/main.h
index 0714611..2df67e1 100644
--- a/src/main.h
+++ b/src/main.h
@@ -24,3 +24,10 @@ void dumb_delay();
 void timer_delay(unsigned short millis);
 int main();
 
+typedef enum {
+	up_idle = 0,
+	down_edge = 1,
+	down_idle = 2,
+	up_edge = 3,
+} button_state;
+