My Requests

Drivers Manual

AOSI EZ-COMPASS-3 (Roll - Pitch) - 03


Driver for ADVANCED ORIENTATION SYSTEMS INC. EZ-Compass-3 solid state MRU/Compass.
Driver can decode the proprietary $P message from the unit.
Driver to be used to decode roll-pitch (no heave) observations and/or heading. Note that the same driver executable is used as for Octans MRU.

The EZ-Compass-3 also outputs temperature and detected magnetic field values but these are not decoded.

The system should be set up to output the proprietary $R message.

Driver Information

AOSI EZ-COMPASS-3 (Roll - Pitch)  Interface Type Serial  Driver Class Type Terminated 
UTC Driver (question) No Input / Output Input  Executable DrvPhotoneticsOctans.exe 
Related Systems
Related Pages

Decoding Notes

By default the driver will check if the checksum of the received message is correct, if checksum fails then nothing is decoded.
This can be overruled by setting the "NOCS" option (see below).

Only Pitch/Poll/Heading are decoded, Magnetic fields and Temperature fields are not decoded.

Database Setup

To decode the heading, add a "System" of type "Gyro", select the driver, and define the heading parameters.
To decode all four observations (pitch, roll and heading), add both these system types to the Qinsy database and make sure to select the same gyro driver as the MRU driver and the same I/O parameters for both systems. 

Drivers IO Notes

 Command line parameter "NOCS" instructs the driver to ignore the checksum of the arrived string and decode the fields even though the checksum is invalid.