Adds Comment for explanation

software/main.c

@@ -562,6 +562,7 @@ void *send_thread(void *arg)
     }
 #endif
 
+//Code for recalibration of clock. Compensates clock drift caused by temperatur!
 #if defined(BOARD_INGA_BLUE) || defined(BOARD_INGA_RED)
 
     volatile uint8_t clock_flag = 0;