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
A real nice feature would be a voice advert when changing flightmode or WP reached.
I started years ago an Atmel driven GPS and studied the HOTT protocol, I was not able fo find out how to generate a voice command.
My workout was change the alarms and make a new voice file for MC32.
About compass:
With heading I mean true flight direction. :)
But taken out from GPS data it is too slow for, let's say, navigation purposes.
I'm am a nature and wildlife photographer, a copter or plane with IR-camera on board would be a very usable tool to scan a territory for animals at night, but a running monitor disturb the night sight of the eyes, that's the reason why I asked for a "real" compass.
Such a night flight is far away from civilisation lights a resl IFR flight.
Using LEDs is not always possible, some animals are very careful specially at night.
I try it again over the weekend, I also recheck my port settings.
The VDF Files are predefined, but you can easily replace the original voices using 2 programms called Bababolka and Goldwave, as said, replace, you cant add some new ones because there is a limited number of messsages which are generated by HOTT.
Voice quality is not the same, because the voice is generated out of Text to Speech, but still good to understand.
You do something for me, I do something for you.... If you want, I compile a VDF for you, only thing I need to know is which alarm number to are going to use to fire up the message.
Compass:
NOW I got it, you are right, if I fly sideways I have wrong heading with true compass, I forgot its not a plane.
I put a prop on one engine right now to test the current data, HOTT show 2A at half throttle, I think it's a little too low, but I tell you more when I have a complete running system. One brandnew ESC seems to be defective, so I am not able to do a flight right now.
The mAH are not actualized, seems there is still remaining a little problem.
First tests on ground!
Works PERFECTLY with MC32 and GR16!!
Very good work! You made my day Michel!
Rpm seems to be a little too low, i am sure that my slow running armed engines do more than 60 rpm.
The HOTT ESCs I own do the rpm calculation with number of poles which needed to be defined over the settings menu, maibe it's an idea for you.
I'll try a flight test as soon as rain stops for more than a few hours.....
1.3b is going to be tested tomorrow, sorry Michel for late reply, i was out for vacations :)
Version 1.3b available for testing and usage.
Get it here: http://mediamax.pro/MAVLink2HoTT/
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.
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
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