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Full size SAM GPS - MRO10037 hwrev

This is the next-generation of the uBlox SAM GPS module with the IST8308 compass. The mRo SAM GPS V2.0 is based on the old and now retired mRo mini SAM. The main difference is that it has a closer-to-ideal ground plane of 42mm x 42mm as recommended by uBlox. This makes it a little heavier at 10.3 grams versus 7.6 grams, but it also gives you an increase from ~22 dB-Hz to ~34dB-Hz, which is a lot of gain for just 2.7 grams! We saved some weight with a new generation, smaller rechargeable coin battery and a thinner PCB.

mRo SAM GPS + IST8308 Mag (Full Size) Supports: Ardupilot


Specifications mRo SAM GPS + IST8308 Mag (Full Size) MRO10037
Constellations USA (GPS), Russia(GLONASS) and Europe (Galileo). China can be enabled (BeiDou).
Compatibility * IST8308 supports: Ardupilot
Compass IST8308
Barometer No
RTK ready No
USB Port No
CAN ready No
Minimum and Maximum Operating Temperature -20 ~ 80 °C
Dimensions 42mm x 42mm x 15mm
Weight 9 grams (.32 oz)
Mounting Holes 30mm x 30mm M2 size
Case Optional
Connectors -6-Pins JST-GH-Auxiliary Port I2c
Includes 1x mRo uGPS ublox Sam M8Q.
1x 6-Pins JST-GH to 6-Pins JST-GH – MRC0206
1x 6-Pins JST-GH to 6 Separate 2.54mm Females – MRC0202 (For project versatility)
Typical Platforms -Multirotor
-Automatic Tractors
Other Features PPS/GND signal pads
Rechargeable battery
Status LED
Standard JST-GH (GPS and I2C)
* 30mm x 30mm mounting holes (1.181″ x 1.181″)

*See full compatibility chart for supported flighstack versions

3D Model


mRo SAM GPS + IST8308 Mag (Full Size) MRO10037 is compatible with the following firmware:


  • Arducopter 4.x
  • ArduPlane 4.x
  • ArduRover 4.x


  • v1.8 (and further versions)

Usage Guide

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


I²C Port

Pin Color Signal TTL/Voltage Level
1 red VCC 5V
2 black I2C_SCL (pull-up on autopilot) 3V3
3 black I2C_SDA (pull-up on autopilot) 3V3
4 black GND N/A

GPS Port

Pin Color Signal TTL/Voltage Level
1 red VCC 5V
2 black RX 3V3
3 black TX 3V3
4 black I2C_SCL 3V3
5 black I2C_SDA 3V3
6 black GND N/A


Download 3D Model