CUAV NEO 3 Pro u-blox M9N GNSS Module with DroneCAN

The CUAV NEO 3 Pro is a DroneCAN GNSS unit for Pixhawk-class autopilots running ArduPilot or PX4. It carries a u-blox NEO-M9N receiver, an industrial RM3100 compass, a barometer, an RGB status light, a buzzer and a safety switch in one housing, so a single four-pin CAN cable replaces the usual bundle of GPS, I2C, LED and switch leads.

Key features

• u-blox NEO-M9N tracking GPS, GLONASS, Galileo and BeiDou together, with 32 or more satellites in view

• RM3100 compass, far less prone to drift near the high-current wiring of a large airframe than a budget magnetometer

• DroneCAN over CAN1 or CAN2, which removes the cable-length limits of an I2C compass run

• Status LED, buzzer and safety switch built in, so no separate arming switch assembly is needed

• SAW plus LNA plus SAW front end for rejecting interference from video transmitters and ESCs

Specifications

• GNSS receiver: u-blox NEO-M9N

• Constellations: GPS, GLONASS, Galileo, BeiDou

• Horizontal accuracy: 2.0 m, 1.5 m with SBAS

• Speed accuracy: 0.05 m/s

• Update rate: 25 Hz maximum

• Cold / hot start: 24 s / 2 s

• Compass: RM3100

• Barometer: ICP-20100

• Processor: STM32F412

• Interface: DroneCAN, GHR-04V-S connector

• Input voltage: 4.7-5.2 V

• Operating temperature: -10 to 70 degrees C

• Size: 60 x 60 x 16 mm

• Weight: 33 g

It accepts RTCM3.3 correction injection for metre-level differential positioning but does not do carrier-phase RTK, so choose an F9P-based unit if centimetre accuracy is the requirement.