/FreeEMS-CAS-HW

A repository for disk designs and CAS housing information for the FreeEMS decoder and pattern.

FreeEMS CAS Disk Hardware

This repository is here to hold design files and information for physical CAS disks for the soon-to-be-infamous [FreeEMS][FreeEMS] decoder.

Two types of housings exist that are useful for installing such a disk in:

  • Mitsubishi Electric (Mitsubishi Motors and Mazda at the least)
  • Nissan (and GM LT1)

The latter has better optics and higher precision. The former has some issues with diffraction and can only be operated at lower window counts, and even then only with great care to align things well.

How the CAS gets decoded depends upon the resolution of it and the capability of the ECU doing the decoding.

Included is the spreadsheet which outlines behavioural properties of the design and eventually proven DXF files. One image is provided now as a reference to get the idea across in a more clear way.

FreeEMS CAS

A larger resolution version and perhaps some online documentation is available on the yet-to-be-finished [FreeEMS CAS page][StatusPageCAS] of the FreeEMS status site. Discussion about decoder development will be able to be found in the decoders section of the [DIYEFI.org forum][Forum] once it has begun.

Links

Thanks for supporting [FreeEMS][FreeEMS]! :-)

Fred.