Posted on by Tim

New Mini-Expansion Unit Software – GPS and Speed Sensor Enhancements

V2.20 software now takes advantage of the latest Syvecs S6 firmware that allows full GPS information to be sent, alongside the existing “slave protocol”.

This allows the MEU to not only provide its 4 additional inputs, plus the EGT/Bosch lambda/barometric pressure data, and an H-bridge driver output, but also all the GPS data – latitude/longitude/course/speed/satellite info etc. And all at a 50Hz update rate.

The GPS protocol used also includes all motion sensor data (lateral/longitudinal/vertical G and yaw/pitch/roll).

The MEU also has GPS beacon functionality that sends a “blip” to the ECU when you drive through the configured beacon zone. Useful for lap timing.

The upgrade also, at long last, adds support for “VR” speed sensors (e.g. typical 2-wire ABS sensors) as well as Hall Effect types. No hardware mods needed – just a firmware update.

All in all, this makes for an extremely powerful combination of functionality, in a highly cost-effective package.

8 Replies to “New Mini-Expansion Unit Software – GPS and Speed Sensor Enhancements”

  1. Hi

    Is there much software manipulation to get the gps unit working?
    I know my way round it a little but not that clued up on everything

    Kind regards
    Dave

  2. There are various ways it can be used, with varying degrees of complexity.

    If it’s used as a generic GPS unit on a Life Racing or Syvecs ECU then it is just a case of setting the ECU to expect GPS data, and the MEU to transmit it (a simple checkbox).

    If it’s used in Syvecs/Life Racing “Slave mode” (so it behaves as an I/O expander) then some manual configuration of the ECU to receive the data is needed – all explained in the User Guide.

    On a Link G4+ or any other ECU it needs manual set up of the ECU to receive the data in the right way, and each ECU type will have its on peculiarities as to what can be set up or not.

    And we’re always here to assist.

  4. Thanks Tim
    It’s being used on a Syvecs 6GP so hopefully won’t be too much of an issue.

    I will be wanting to use it for the four wheel speed inputs, GPS, and the yaw sensors etc, for aiding traction control

    Thanks for the info

    Kind regards
    Dave

    1. Hi Tim

      Can you confirm that I can use the 4 additional inputs along side the motion sensor data (lateral/longitudinal/vertical G and yaw/pitch/roll). On the S6 GP ?

      Kind regards
      Dave

  5. Thanks Tim

    Sorry for all the questions!

    I am currently picking up my 2 wire wheel speed sensors using bipolar
    These are lotus/Vauxhall wheel packs

    Not sure if I would need your hardware mod to pick these sensors up?

    Cheers
    Dave

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