Arducopter MavLink To Hott Telemetry Adapter

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

Interface for Ardupilot (Pixhawk, APM ...) to Graupner HoTT receiver to deliver Ardupilot telemetry data to Graupner transmitter. - j-lang/MAVLink2Ho…

Replies

- - - - Hannes > Michel Kosloff June 16, 2016 at 5:15am
        
        Missing data on Hott-transmitter:
        
        please refer to serial configuration on https://github.com/j-lang/MAVLink2Hott/wiki/2.-Config-APM-Pixhawk
        
        If serial interface is miss-configured the interface does not get all necessary data.
        
        Would it possible to integrate HoTT telemetry into minimosd? A new developer https://github.com/night-ghost/minimosd-extra made some memory free by optimizing the old code.
        
        j-lang/MAVLink2Hott
        
        Interface for Ardupilot (Pixhawk, APM ...) to Graupner HoTT receiver to deliver Ardupilot telemetry data to Graupner transmitter. - j-lang/MAVLink2Ho…
      - Hannes > Deepflights June 16, 2016 at 12:20am
        
        Great job, can you publish source on github to allow community support.
        
        Wiki pages allow to give more information on setup and configuration to users.
        
        @deepflight: as I know works 3,3V version on 8MHz instead of 16MHz of 5V version.
        
        Michel Kosloff > Hannes June 16, 2016 at 4:37am
        
        I' trying to include this code into Ardupilot project. If this will fail, I'll publish it alone.
        
        My firmware runs in 16MHz 328p boards as it uses compiled-in prescaler values.
        
        Deepflights > Hannes June 16, 2016 at 12:38am
        
        Yes that's right, maibe this is the reason why.
- hüseyin yıldız > Geofrancis December 14, 2015 at 2:10pm
  
  i have tried months ago, but i cant succes. i will try hex files again, because i cıuldnt compile others with arduino.
hüseyin yıldız July 15, 2015 at 2:24am

can i learn schematic diagram of connections ?

http://fpvbrasil.com.br/photo/conex-o-mavlink-to-hott?context=user
Yannick May 7, 2015 at 10:13am

Hello Marcelo!

I tested your sketch yesterday. Works!

One thing i noticed is the heading. It must be sent in 2 degree steps. I get a heading from~ 1-140°

Hello Michel!

How can i flash the hex file to my Pro mini? Do i need a special ISP?
- Michel Kosloff > Yannick May 7, 2015 at 11:28am
  
  Hi
  
  You don't need any ISP. As these boards usually come with bootloader already installed, so you don't need any ISP, only serial port (eg. FTDI cable etc).
  
  Just use google search how to flash hex into arduino board. It's easy. If you have serial cable (and you should have if you are able to test and flash sketches), use it with AVRDude, which you should also have installed with arduino IDE.
  
  There are several free GUIs for AVRDude on the net.
  - pix > Michel Kosloff July 1, 2015 at 1:09am
    
    Hello Michel,
    
    I'am testing and i'd like to have failsafe indication (battery, ...), fence breached ... with message and sound on my mx20.
    
    Did you develop it ? Could you share your code ?
    
    Thenks
    - Michel Kosloff > pix July 6, 2016 at 1:13pm
      
      See newer version 1.3 with many of your ideas implemented.
      
      This version uses only pin 3 due to int1 usage.
      
      MAVLink2HOTT-v1.3b.hex
      
      https://storage.ning.com/topology/rest/1.0/file/get/3702816818?profile=original

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Arducopter MavLink To Hott Telemetry Adapter

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