APM2.0 is the source code of the drone flight control mainboard based on the Arduino platform

libraries\\\\AC_PID .........\\\\......\\\\AC_PID.cpp .........\\\\......\\\\AC_PID.h .........\\\\......\\\\examples .........\\\\......\\\\........\\\\AC_PID_test .........\\\\......\\\\........\\\\...........\\\\AC_PID_test.pde .........\\\\......\\\\........\\\\...........\\\\Makefile .........\\\\......\\\\keywords.txt .........\\\\AP_ADC .........\\\\......\\\\AP_ADC.cpp .........\\\\......\\\\AP_ADC.h .........\\\\......\\\\AP_ADC_ADS7844.cpp .........\\\\......\\\\AP_ADC_ADS7844.h .........\\\\......\\\\AP_ADC_HIL.cpp .........\\\\......\\\\AP_ADC_HIL.h .........\\\\......\\\\examples .........\\\\......\\\\........\\\\AP_ADC_test .........\\\\......\\\\........\\\\...........\\\\AP_ADC_test.pde .........\\\\......\\\\........\\\\...........\\\\Makefile .........\\\\......\\\\keywords.txt .........\\\\AP_AHRS .........\\\\.......\\\\AP_AHRS.cpp .........\\\\.......\\\\AP_AHRS.h .........\\\\.......\\\\AP_AHRS_DCM.cpp .........\\\\.......\\\\AP_AHRS_DCM.h .........\\\\.......\\\\AP_AHRS_HIL.cpp .........\\\\.......\\\\AP_AHRS_HIL.h .........\\\\.......\\\\AP_AHRS_MPU6000.cpp .........\\\\.......\\\\AP_AHRS_MPU6000.h .........\\\\.......\\\\examples .........\\\\.......\\\\........\\\\AHRS_Test .........\\\\.......\\\\........\\\\.........\\\\AHRS_Test.pde .........\\\\.......\\\\........\\\\.........\\\\Makefile .........\\\\AP_Airspeed .........\\\\...........\\\\AP_Airspeed.cpp .........\\\\...........\\\\AP_Airspeed.h .........\\\\...........\\\\examples .........\\\\...........\\\\........\\\\Airspeed .........\\\\...........\\\\........\\\\........\\\\Airspeed.pde .........\\\\...........\\\\........\\\\........\\\\Makefile .........\\\\AP_AnalogSource .........\\\\...............\\\\AnalogSource.h .........\\\\...............\\\\AP_AnalogSource.h .........\\\\...............\\\\AP_AnalogSource_ADC.cpp .........\\\\...............\\\\AP_AnalogSource_ADC.h .........\\\\...............\\\\AP_AnalogSource_Arduino.cpp .........\\\\...............\\\\AP_AnalogSource_Arduino.h .........\\\\...............\\\\examples .........\\\\...............\\\\........\\\\AnalogSource_Arduino .........\\\\...............\\\\........\\\\....................\\\\AnalogSource_Arduino.pde .........\\\\...............\\\\........\\\\..........\\\\Makefile .........\\\\AP_Baro .........\\\\.......\\\\AP_Baro.cpp .........\\\\.......\\\\AP_Baro.h .........\\\\.......\\\\AP_Baro_BMP085.cpp .........\\\\.......\\\\AP_Baro_BMP085.h .........\\\\.......\\\\AP_Baro_BMP085_hil.cpp .........\\\\.......\\\\AP_Baro_BMP085_hil.h .........\\\\.......\\\\AP_Baro_MS5611.cpp .........\\\\.......\\\\AP_Baro_MS5611.h .........\\\\.......\\\\examples .........\\\\.......\\\\........\\\\AP_Baro_BMP085_test .........\\\\.......\\\\........\\\\...................\\\\AP_Baro_BMP085_test.pde .........\\\\.......\\\\........\\\\...................\\\\Makefile .........\\\\.......\\\\........\\\\AP_Baro_MS5611_test .........\\\\.......\\\\........\\\\...................\\\\AP_Baro_MS5611_test.pde .........\\\\.......\\\\........\\\\...................\\\\Makefile .........\\\\AP_Camera .........\\\\.........\\\\AP_Camera.cpp .........\\\\.........\\\\AP_Camera.h .........\\\\AP_Common .........\\\\.........\\\\AP_Common.cpp .........\\\\.........\\\\AP_Common.h .........\\\\.........\\\\AP_Loop.cpp .........\\\\.........\\\\AP_Loop.h .........\\\\.........\\\\AP_MetaClass.cpp .........\\\\.........\\\\AP_MetaClass.h .........\\\\.........\\\\AP_Param.cpp .........\\\\.........\\\\AP_Param.h .........\\\\.........\\\\AP_Test.h .........\\\\.........\\\\AP_Var_menufuncs.cpp .........\\\\.........\\\\AP_Vector.h .........\\\\.........\\\\Arduino.mk .........\\\\.........\\\\c++.cpp .........\\\\.........\\\\c++.h .........\\\\.........\\\\examples .........\\\\.........\\\\........\\\\AP_TimeCheck_test .........\\\\.........\\\\........\\\\.................\\\\AP_TimeCheck_test.pde .........\\\\.........\\\\........\\\\menu .........\\\\.........\\\\........\\\\....\\\\menu.pde .........\\\\.........\\\\include .........\\\\.........\\\\.......\\\\menu.h .........\\\\.........\\\\keywords.txt .........\\\\.........\\\\menu.cpp .........\\\\.........\\\\tools .........\\\\.........\\\\.....\\\\eedump.c .........\\\\.........\\\\.....\\\\eedump.pl .........\\\\.........\\\\.....\\\\eedump_apparam.c .........\\\\.........\\\\.....\\\\eedump_apparam.pl .........\\\\AP_Compass