HEX/ProfiCNC Here+ RTK GPS

The Here+ RTK GPS receiver is a small, light and energy efficient RTK GPS, based on the u-blox M8P. Using RTK, PX4 can get its position with centimetre-level accuracy, which is much more accurate than can be provided by a normal GPS.

Purchase

Configuration

RTK setup and use on PX4 via QGroundControl is largely plug and play (see RTK GPS for more information).

Wiring and Connections

The Here+ GPS comes with an 8 pin connector that can be inserted directly into the Pixhawk 2 GPS UART port.

The Pixhawk 3 Pro and Pixracer have a 6 pin GPS port connector. For these controllers you can modify the GPS cable (as shown below) to remove pin 6 and 7.

Pin 6 and 7 are for the safety button - these can be attached as well if needed.

Pinout

The Here+ GPS pinout is provided below. This can be used to help modify the connector for other autopilot boards.

pin Here+ GPS pin Pixhawk 3 Pro GPS
1 VCC_5V 1 VCC
2 GPS_RX 2 GPS_TX
3 GPS_TX 3 GPS_RX
4 SCL 4 SCL
5 SDA 5 SDA
6 BUTTON - -
7 BUTTON_LED - -
8 GND 6 GND
© PX4 Dev Team. License: CC BY 4.0           Updated: 2017-08-17 12:00:04

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