Good day guys !!  

I feel the need to obtain the information from my PixHawk in my Graupner MZ-24 screen. I found
some threads talking about a change in arducopter firmware to run the telemetry, not good at messing original controller firmware.

Then I found an "adapter" that staff of the AutoQuad made to convert the MavLink in Hott telemetry.

I come here to share a few changes I made in the project Mav2Rott downloaded here: http://autoquad.org/software-downloads/?did=31.
This is an adaptation to send the telemetry PixHawk for Graupner Hott Protocol.

Is correct with some features:

Battery Voltage;
Altitude for barometer;
Satellite count Speed;
Flight Modes Current drawn by the motor;
Direction of the Head;

I am not able to make it work:

Correct display Latitude and Longitude;
Distance of Home;
Direction of Home;

If anyone can help thank you very much.
The project is attached to the topic. The connections are equal to the jd-ioboard. I am using an Arduino Pro Mini.

Mav2HoTT_NoLeds.zip

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Replies

  • Hi is there anyone who is using vario voice from graupner mx20. It doesn't work corectly in my setup any idea why ?
  • Ok so I found how to disable "minimum altitude" in "fence alerts" min altitude must be set to OFF

  • Hi and another question. After take off I still hear "minimum altitude" message on my earphones from mx20. Does anyone knows how to disable that alert ?

  • Is that normal that from time to time telemetry is 0000 and after one second it's showing data again ?



  • Michel Kosloff said:


    What model of receiver do you have?

    I use GR-16.



  • Ultrafuge said:

    Hi,

    With the original schematic (Power from Pixhawk to 'Vcc' I get fluctuating Rx voltage display.
    I get much better results by powering the Arduino from the Rx (Rx on 2s). Red wire goes to 'RAW' and NOT to 'Vcc' !!! Signal (white / orange) goes to '3' and black/brown to 'GND'.
    Two wires ('RXI' and 'GND') to Pixhawk.

    What model of receiver do you have?

    I experienced similar behavior only with GR-12/GR-12L

  • New version is available here http://mediamax.pro/MAVLink2HoTT/

    MAVLink2HoTT
  • Hi,

    With the original schematic (Power from Pixhawk to 'Vcc' I get fluctuating Rx voltage display.
    I get much better results by powering the Arduino from the Rx (Rx on 2s). Red wire goes to 'RAW' and NOT to 'Vcc' !!! Signal (white / orange) goes to '3' and black/brown to 'GND'.
    Two wires ('RXI' and 'GND') to Pixhawk.

  • Everybody, thank you all for your help and support,

    I am happy to report success.

    I had contacted Michel Kosloff, the developer of the mavlink2hott firmware and after some deliberation and a video I sent him, he suggested not using an arduino with onboard USB, as I had, but rather an arduino pro mini.

    That worked like a charm!

    Best regards
    -Kay
  • Hi Hannes, thanks for the reply. 

    That is good news to see it has been working on a miniAPM

    The APM only has SR0 and SR1. I believe SR0 is the telemetry port. There is no parameter to set which port to use in my firmware.

    I have tried said SRx settings and could not get any data, however.

    Could you tell me which firmware you have used it with on the miniAPM?

    I use 3.2.1 which is the most current.

    best regards

    Kay

This reply was deleted.

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