Skip to content

Med size SAM GPS - MRO10038 hwrev

The mRo SAM GPS V2.0 is based on the old and now retired mRo mini SAM. The main difference is that it uses an ideal ground plane of 40mm x 40mm 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.

Compared to the IST, the IST8308 has less temperature drift, more sensitivity, and a built-in noise filter. Older GPS versions used the LIS3MDL, which doesn’t even come close to the performance of the old IST8310, let alone the IST8308.

mRo SAM GPS + IST8308 Mag (Med Size) Supports: Ardupilot and PX4.


Specifications mRo SAM GPS + IST8308 Mag (Medium Size) MRO10038
Ground Plane 31mm x 31mm
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 36mm x 31mm x 11.5mm
Weight 8.3 grams (0.29 oz)
Mounting Holes No
Case Optional
Connectors -6-Pin JST-GH-Auxiliary Port I²C
Includes 1x mRo uGPS ublox Sam M8Q.
1x 6-Pins JST-GH to 6-Pins JST-GH – MRC02061x 6-Pins JST-GH to 6 Separate 2.54mm Females – MRC0202 (For project versatility)
Typical Platforms -Multirotor
-Automatic Tractors
Other Features Lightest GPS version , 7.86 grams (.28 oz)
PPS/GND signal pads
Rechargeable battery
Status LED*Standard JST-GH (GPS and I2C)

*See full compatibility chart for supported flightstack versions

3D Model


Compatible with:


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


  • V1.10
  • V1.9
  • V1.8

Usage Guide

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



Pinouts are from the Autopilot perspective.

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