Intro to Ardupilot and PX4 (Part 1) - Circuit Cellar
ArduPilot (Legacy) main page - Blogs - diydrones
ArduPilot Documentation — ArduPilot documentation
ArduPilot Documentation — ArduPilot documentation
ArduPilot Mega 2.5 | Flite Test
Ardupilot Camera Shutter Configuration - World Drone Market
ArduPilot Mega 2.5+ Kits... the ultimate open source autopilot http://www.unmannedtechshop.co.uk/ardupilot-mega-apm-2-… | Save power, Navigation system, Old radios
ArduPilot Integration | RTK Modules
HardWare/Drones/Autopilot/sitl – meshbed
ArduPilot & ROS for Object Avoidance in Auto - YouTube