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
Replies
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.
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.
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.
Yes that's right, maibe this is the reason why.
i have tried months ago, but i cant succes. i will try hex files again, because i cıuldnt compile others with arduino.
can i learn schematic diagram of connections ?
http://fpvbrasil.com.br/photo/conex-o-mavlink-to-hott?context=user
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?
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.
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
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
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