apm 2.8 with compass (superior quality) This is superior qulity apm 2.8 with good qulity This is the new APM 2.8 autopilot module. The sensors are exactly the same as with Apm 2.5 and APM2.6, which makes this version ideal for use with multicopters [planes and rovers. - 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 side connectors. This is designed to be used with the 3DR uBlox GPS with Compass 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 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 M8n Ublox neo

 (M8n is latest gps better accuracy than M6_7M )

A new generation Ublox GPS NEO-M8N,with low power consumption and high precision, the ultimate accuracy is 0.6 meters, actually almost 0.9 meters, greater than the previous generation NEO-7N 1.4-1.6 meters accuracy,support GPS/QZSS L1 C/A, GLONASS L10F, BeiDou B1 protocol and mode or more. GPS Chip parameters: Receiver type 72-channel u-blox M8 engine GPS/QZSS L1 C/A, GLONASS L10F, BeiDou B1 SBAS L1 C/A: WAAS, EGNOS, MSAS Galileo-ready E1B/C (NEO-M8N) Nav. update rate1 Single GNSS: up to 18 HZ Concurrent GNSS: up to 10 Hz Position accuracy2 2.0 m CEP Acquisition2 Cold starts: 26 s Aided starts: 2 s Reacquisition: 1.5 s Sensitivity2 Tracking & Nav: –167 dBm Cold starts: –148 dBm Hot starts: –156 dBm Assistance AssistNow GNSS Online AssistNow GNSS Offline (up to 35 days)3 AssistNow Autonomous (up to 6 days) OMA SUPL & 3GPP compliant Oscillator TCXO (NEO-M8N/Q), Crystal (NEO-M8M) RTC crystal Built-In Noise figure On-chip LNA (NEO-M8M). Extra LNA for lowest noise figure (NEO-M8N/Q) Anti jamming Active CW detection and removal. Extra onboard SAW band pass filter (NEO-M8N/Q) Memory ROM (NEO-M8M/Q) or Flash (NEO-M8N) Supported antennas Active and passive Odometer Travelled distance Data-logger For position, velocity, and time (NEO-M8N) Operating temp. –40° C to 85° C Storage temp. –40° C to 85° C (NEO-M8N/Q) –40° C to 105° C (NEO-M8M) RoHS compliant (lead-free) Qualification according to b6 ISO 16750 Manufactured and fully tested in ISO/TS 16949 certified production sites Uses u-blox M8 chips qualified according to AEC-Q100 Supply voltage 1.65 V to 3.6 V (NEO-M8M) 2.7 V to 3.6 V (NEO-M8N/Q) Power consumption4 23 mA @ 3.0 V (continuous) 5 mA @ 3.0 V Power Save Mode (1 Hz, GPS mode only) Backup Supply 1.4 to 3.6 V NEO-M8N-0 u-blox M8 Concurrent GNSS LCC Module, TCXO, flash, SAW, LNA, Timepulse Configurable 0.25 Hz to 10 MHz

Compass: optional built-in and without compass (You can confirm us after the order what u need...)

For multicopter its better to use external compass which is built in in gps m8n }

package includes

1x apm 2.8
1x Gps m8n

apm 2.8 with GPS Ublox M8N