diff -r 9857c18c5e64 -r 018d4d63ad3b blackbox/main.h
--- a/blackbox/main.h	Wed Dec 07 15:56:05 2011 +0100
+++ b/blackbox/main.h	Wed Dec 07 16:50:51 2011 +0100
@@ -83,7 +83,8 @@
 #define TIMER1_DIVISOR  8
 #define VALUE1_7500NS   0.75e-2
 #define TIMER1_7500NS   (uint16_t)(VALUE1_7500NS * F_CPU/TIMER1_DIVISOR)
-
+#define VALUE1_500NS    0.5e-3
+#define TIMER1_500NS    (uint16_t)((VALUE1_500NS * F_CPU/TIMER1_DIVISOR) + 2) // MEASURE THIS EXACTLY WITH SCOPE
 
 #define DDR(x) (*(&x - 1))      // address of data direction register of port x
 #define PIN(x) (*(&x - 2))      // address of input register of port x