Please check here maybe it can help to you.ArduPilot Mega 2.6 + External Compass w/Ublox NEO-6M Features:
- Arduino Compatible!
- Can be ordered with top entry pins for attaching connectors vertically, or as side entry pins to slide your connectors in to either end horizontally
- 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-6M module with Compass.
- One of the first open source autopilot systems to use Invensense's 6 DoF Accelerometer/Gyro MPU-6000.
- Barometric pressure sensor upgraded to MS5611-01BA03, from Measurement Specialties.
- Atmel's ATMEGA2560 and ATMEGA32U-2 chips for processing and usb functions respectively.
GPS Features:
- Built-in compass GPS module
- Main chip: Ublox-6M
- With fast satellite searching speed and high precision
- Compatible with APM serial port and I2C port
- Includes round plastic shell and GPS support
Package Included:
- APM 2.6 Board w/Shell
- Ublox-6M GPS module w/Roud plastic shell
- GPS folding support
Buy Now -
http://www.rcproduct.in/multi-rotor-flight-controller/51-ardupilot-mega-26-external-compass-wublox-neo-6m-side-pin-.htmlAPM2.5 & Telemetry kit wanted