NEO 3 Pro GNSS module


NEO 3 Pro uses a hardware design similar to NEO v2 Pro, and upgrades the GNSS navigation module to the M9N module that supports the four mainstream satellite systems of Beidou, GPS, Galileo and Glonass. The positioning accuracy has been significantly improved. It is a high Cost-effective unmanned system positioning and navigation module. It integrates compass, barometer, flight controller status light, buzzer, and safety switch in one; it has the characteristics of high sensitivity and strong anti-interference.

neo 3 pro

Ardupilot 4.0 and above firmware perfectly supports NEO 3 Pro; PX4 is not yet fully compatible with NEO 3 Pro (such as safety switches and buzzers cannot work).

Product features

  • Integrated Ublox latest generation GNSS module (NEO-M9N)
  • Support the concurrency of four mainstream satellite systems to adapt to more complex environments
  • Dedicated antenna supporting four major satellite systems
  • UAVCAN standard protocol, high real-time, strong anti-interference
  • Industrial grade sensor (RM3100), better anti-interference performance
  • High-performance processing unit STM32F412
  • Internal high-precision barometer to meet the needs of different application scenarios
  • Open source program, support custom program
  • Adopting SAW+LNA+SAW double filter design, effectively avoid the influence of remote control, data transmission, 4G signal on GPS positioning reception.

Key data

Processor STM32F412
Compass RM3100
Barometer MS5611
RGB drive NCP5623C
Buzzer Passive buzzer
Safety switch Physical button
GNSS Beidou、Galileo、 GLONASS、 GPS
Number of concurrent GNSS 4
Frequency band GPS:L1C/A
Horizontal accuracy 2.0M
Speed accuracy 0.05M/S
Nav. update rate 25Hz(Max)
Acquisition Cold start:24S
Hot start:2S
Aided start:2s
Number of satellites(MAX) 32+
Sensitivity Tracking and nav-167dBm
Cold start Hot star-148dBm
Reacquisition -160dBm
Protocol UAVCAN
Port TYpe GHR-04V-S
Supported flight controller CUAV series,
Pixahwk series
Wave filtering SAW+LNA+SAW
Anti-Electromagnetic/radio frequency interference EMI+RFI
Upgrade firmware support
Support Flight control type Ardupilot/PX4*(PX4 is still working hard to adapt to the clock)
Input voltage 5V
Operating temperature -10~70℃
Size 60*60*16MM
Weight 33g
  • NEO 3 Pro level accuracy when the SBAS enhancement system is turned on, the nominal accuracy is 1.5m (default); when the SBAS enhancement system is turned off, it is 2.0m
  • NEO 3 Pro supports RTCM3.3 injection, but does not support RTCM output; it can achieve pseudorange differential (meter-level positioning) but does not support carrier phase differential (RTK), and it needs a base station that supports RTCM3.3 output.

Ardupilot 4.0.0 and above firmware supports NEO 3 PRO, and PX4 firmware is still in the adaptation stage


CUAV store

Connection to V5+

MP set

  • Please connect it to the flight control CAN1 / CAN2 interface (CAN1 is recommended)

The connection of other PIX flight controllers is the same.


you need to set flight control parameters to enable Neo V2 pro; there are different setting methods according to the flight control firmware.

ArduPilot firmware

Set the following parameters in all parameter tables of Mission planner and restart after writing

  • CAN_P1_DRIVER set to 1.
  • CAN_P2_DRIVER set to 1.
  • NTF_LED_TYPES set to 231.
  • GPS_TYPE set to 9.

MP set

More info

Users manual

results matching ""

    No results matching ""