APM 2.8 module flight controller board built-in compass Horizontal side pin apm2.5 2.6 upgraded for RC Quadcopter

This is the new APM 2.8 autopilot module. The sensors are exactly the same as with APM2.6.

The APM 2.8 is a complete open source autopilot system and the bestselling technology that won the prestigious 2012 Outback Challenge UAV competition. It allows the user to turn any fixed, rotary wing or multirotor vehicle (even cars and boats) into a fully autonomous vehicle; capable of performing programmed GPS missions with waypoints. Available with top or side connectors.

This revision of the board has no onboard compass, which is designed for vehicles (especially multicopters and rovers) where the compass should be placed as far from power and motor sources as possible to avoid magnetic interference. (On fixed wing aircraft it's often easier to mount APM far enough away from the motors and ESCs to avoid magnetic interference, so this is not as critical, but APM 2.6 gives more flexibility in that positioning and is a good choice for them, too). This is designed to be used with the 3DR uBlox GPS with Compass (see option below), so that the GPS/Compass unit can be mounted further from noise sources than APM itself.

Features :

Arduino Compatible

Includes 3-axis gyro, accelerometer and magnetometer, along with a high-performance barometer

Onboard 4 MegaByte Dataflash chip for automatic datalogging

Optional off-board GPS, uBlox LEA-6H module with Compass.

One of the first open source autopilot systems to use Invensense's 6 DoF Accelerometer/Gyro MPU-6000

Atmel's ATMEGA2560 and ATMEGA32U-2 chips for processing and usb functions respectively.

Note:

if use apm2.8 without internel compass, you should add externl compass, and the type of  externl compass is HMC5583 or HMC5983.