APM 2.8 Multicopter Flight Controller is the new version of 2.5 and 2.6. it has built-in Compass for FPV RC Drone Aircraft flight controller. Here is the new option of Built-in Compas or external compass through a jumper. 2.8 Multicoper flight Controller is an open-source autopilot system. it is also the best selling product and it also won the Challenge UAV competition.
“Pixhawk PX4 2.4.8 Flight Controller for FPV and quadcopters, offering precise control, advanced stabilization, and seamless compatibility with multiple platforms. Ideal for drones, UAV projects, and professional applications.”