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.
Working: It is used when we need to turn any fixed, rotary wing or multirotor vehicle e.g car or boats. it makes the vehicle autonomous. and it is capable to perform Programmed GPS.
2.8 Flight Controller has an optional onboard compass and is designed for vehicles. this flight controller is used with 3DR uBlue GPS with Compass. So the Compass unit can be mounted further from noise sources than APM itself.
more convenient to connections GPS with external compass. Replaced the V2.52 I2C interface to multi-purpose MUX interfaces, which can be used by the users themselves through the Pad of Back Board freely configurable function output, UART0, UART2, I2C. Improved OSD interface when used in conjunction with Data Transmission, because of the isolation resistance, more effective to avoid the interference of Data Transmission.