CUAV NEO 4 Nano User Manual

NEO 4 Nano Micro GNSS Positioning System

Note

ArduPilot firmware version 4.0 and later fully supports the NEO 4 NANO.

Data Sheet

ItemDetails 
Receiver Typeu-blox MIA-M10Q
ProcessorSTM32H5 Arm® Cortex®-M33 250 MHz
CompassIIS2MDC
Frequency BandGPS: L1 C/A
GLONASS: L1OF
BDS: B1I/B1C
Galileo: E1B/C
Augmentation SystemsSBAS: EGNOS, GAGAN, MSAS, WAAS, BDSBAS, KASS and SouthPAN
QZSS L1S (SLAS)
Number of Concurrent GNSS4 (BDS, Galileo, GLONASS, GPS)
OscillatorTCXO
AcquisitionCold Start 27s
Hot Start 1s
Aided Start 1s
Nav. Update RateUp to 10 Hz (4-concurrent GNSS)
Up to 25 Hz (single GNSS)
Horizontal Position Accuracy1.5 m CEP
Signal IntegrityRF interference and jamming detection and reporting
Spoofing detection and reporting
Wave FilteringSAW+LNA+SAW+LNA
Anti Electromagnetic / Radio Frequency InterferenceEMI+RFI
ProtocolDroneCAN
Upgrade FirmwareSupport
FirmwareCUAV M4C GNSS
Data InterfaceGHR-04V-S
Size34 × 20 × 14.5 mm
Weight10.6 g
Input Voltage4.5 ~ 5.4 V
Operating Temperature-10 ~ +80 ℃

Size and Pinout

Connecting to the Controller

  • Connect to the flight controller’s CAN1 / CAN2 port (CAN1 is recommended).

Tip

The flight controller must support the DroneCAN protocol, such as ArduPilot and PX4 flight stacks.

Controller Parameter Setup

Before use, you need to configure the flight controller parameters to enable the Neo 4 Nano; the method varies depending on the controller firmware.

ArduPilot Firmware

In Mission Planner’s Full Parameter List, set the following parameters, write them, and then reboot:

  • CAN_P1_DRIVER set to 1.
  • CAN_P2_DRIVER set to 1.
  • NTF_LED_TYPES set to 231.
  • GPS_TYPE / GPS1_TYPE set to 9 (if used as GPS1).

Using the LGC ground station, you can configure it quickly without manual parameter adjustment.

PX4 Firmware

In QGroundControl > Parameters, set the following parameters, write them, and then reboot:

  • UAVCAN_ENABLE set to Sensors Automatic config.
  • UAVCAN_SUB_GPS set to Enable.

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