lian/multiwii — pull request #1 by wertarbyte (2012-04-01 09:56:10+00:00)
Title: add configurable LED flasher

This change uses PB4 (Arduino pin 12) to flash an LED. The sequence of
flashes is configurable by defining LED_FLASHER_SEQUENCE and can be
changed anytime; it is repeated every second.

This patch also introduces the define DISABLE_POWER_PIN, which instructs
Multiwii to not use PB4 for powering or resetting the WMP.