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GPS Classic M8N – IST8308



Features the latest Taoglass Antenna tuned for GPS + GLONASS, which provides a higher gain compared to any of its predecessors (from 1.5dBi to 5dBi), as well as the IST8308 compass by iSentek, which is based on the legendary HMC5983 technology and licensed by Honeywell. In addition, the IST8308 is temperature compensated and has a micro USB port which enables you to access all u-Blox features via u-Center and power the device. Please refer to this document if you have driver issues.

Extra Info: HMC5983 and the IST8308 are pin-compatible (either one is placed on the board, but not both). There is a third option, QMC5883L, that we might support later. If you need help identifying which version you have, please refer to this document.


Specifications mRo GPS u-Blox Neo-M8N – IST8308
Ground Plane 40mm x 47mm
Constellations USA (GPS), Russia(GLONASS), Europe (Galileo) & China (BeiDou).
Compatibility See full compatibility chart for supported flighstack versions IST8308 supports: PX4 and Ardupilot
Compass IST8308
Barometer No
RTK ready No
USB Port Yes
CAN ready No
Minimum and Maximum Operating Temperature -20 ~ 80 °C
Dimensions 40mm x 47mm x 9.9mm
Weight 16.60 grams (.586 oz)
Mounting Holes 2.5mm and 5.4mm
Case Optional
Connectors -6-Pins JST-GH
-Auxiliary Port I2c
Includes 1x 6-Pins JST-GH cable
Typical Platforms -Multirotor
-Automatic Tractors
Other Features RGB LED driver (NCP5623) integrated.
PPS pad for easy access.
*On-board safety switch.

3D Model


The mRo GPS u-Blox Neo-M8N – IST8310 is compatible with the following firmware:


  • ArduCopter 4.x
  • ArduPlane 4.x
  • ArduRover 4.x


  • V1.8 (and further versions)

Normal Usage Guide

All connectors follow the Dronecode connector standard. Unless noted otherwise, all connectors are JST-GH.



NOTE: Pinouts are from the Autopilot perspective.

I²C Port


GPS Port



UBlox GPS Configuration


Download 3D Model