CubePilot Here3 RTK GNSS (u-blox M8P) with iStand

The CubePilot Here3 is a DroneCAN GNSS module built around the u-blox M8P-2 RTK receiver, with its own STM32F302 processor and an ICM20948 sensor that supplies compass, gyroscope and accelerometer data. It suits Cube and other DroneCAN-capable ArduPilot or PX4 flight controllers on survey, mapping, agricultural and industrial multirotors, and this package includes the iStand mounting mast.

Key features

• RTK-ready: 0.025 m positioning under ideal conditions with a correction source, 2.5 m as a standalone 3D fix.
• Multi-constellation: tracks GPS L1C/A, GLONASS L1OF and BeiDou B1I at up to 8 Hz.
• DroneCAN at 1 Mbit/s: one 4-wire CAN cable carries 5 V power and data, leaving the flight controller's serial ports free.
• Onboard IMU and compass in the same housing, with status LEDs and firmware updates through Mission Planner.
• Housing with better dust and water resistance than the original Here+, though it is not waterproof.

Specifications

• GNSS receiver: u-blox M8P-2
• Processor: STM32F302
• IMU and compass: ICM20948
• Interface: DroneCAN, 1 Mbit/s
• Supply: 5 V via the CAN connector
• Update rate: up to 8 Hz
• Accuracy: 2.5 m 3D fix; 0.025 m RTK under ideal conditions
• Operating temperature: -40 to 85 °C
• Dimensions: 68 × 68 × 16 mm
• Weight: 48.8 g (module only)
• In the box: Here3 module, iStand mount

RTK needs a separate base station or network correction stream sent to the aircraft through your ground-control link; neither the base nor a flight controller is included. Without corrections, the Here3 works as a standard GNSS and compass.