Finally first working OSD firmware dedicated to Ardupilot

OK
The first working firmware for OSD to display raw data from Ardupilot seems to work now .
This firmware should also work with ArduIMU - but I had no chance to check it - I have not arduIMU - I hope Paul will do this .

The main problem for me - is that I do not understand well how actually ardupilot works .
At summer Jordi tryed to made me an expalanations but i lose all that emails :( , hard to say but I have not enought information about ardupilot and his way of work (lastly I had no time as the main reason of my incompetence) .

What are exactly all this data means ? :
!!!LAT:50017380,LON:20002444,SPD:19.00,CRT:0.00,AL T:0,ALH:0,CRS:8.00,BER:185,WPN
:0,DST:1933,BTV:12.45,***
+++ASP:0,THH:85,RLL:60,PCH:-60,***
+++ASP:0,THH:85,RLL:60,PCH:-60,***
+++ASP:0,THH:85,RLL:60,PCH:-60,***
+++ASP:0,THH:85,RLL:60,PCH:-60,***
+++ASP:0,THH:85,RLL:60,PCH:-60,***

and when ardupilot is ready to fly - how it save his home position ? I need this for display - also can be nice one more info about SAT quantity .

As any of you gentelmens , know how the ardu works and what represent all this data for - please let me explain (exept DST, ALT, SPD PTH RLL) - that I suppose to already know .

here is the screen shot :


Some more immpressions can be read and firmware can be dowloaded here - http://www.rcgroups.com/forums/showpost.php?p=13667448&postcoun...

Views: 590


Developer
Comment by Jordi Muñoz on November 25, 2009 at 5:01pm
The next version of ardupilot will have SAT's information available... ;-)

Admin
Comment by Morli on November 25, 2009 at 6:04pm
Congrats :)

Admin
Comment by Morli on November 25, 2009 at 6:10pm
@ Remzibi , BTW what are the 4 points around the center ? How difficult is it to implement the artificial horizon in this screen? Sorry if I missed it else were. thanks

Developer
Comment by Jason Short on November 25, 2009 at 7:09pm
Jordi, this is my understanding. Please correct me if I'm off.

Attitude:
+++
ASP:airspeed,
THH: throttle value in percent
RLL: roll angle
PCH: w pitch angle
***

Position:
!!!LAT: latitude * 10,000,000
LON: longitude * 10,000,000
SPD: ground_speed in meters
CRT: climb_rate - m/s
ALT: altitude above home in meters
ALH: target altitude in meters
CRS: angle of plane in degrees
BER: angle of wp to plane in degrees
WPN: waypoint index
DST: distance from plane in meters
BTV: voltage * 1000
RSP: angle of rudder in degrees
***
Comment by Peter Meister on November 25, 2009 at 11:04pm
Way to go HappyK...Awesome Job my friend...
Comment by Dimitar Kolev on November 26, 2009 at 3:10am
Gongrats to the team! You prove this possible every day. Make to order my first ArduIMU, too :-)
Comment by remzibi on November 26, 2009 at 1:15pm
This points are artifical horizon - please read this http://www.rcgroups.com/forums/showpost.php?p=13604754&postcoun...
or watch this movie http://www.youtube.com/watch?v=gwKxMZkFVtg
Comment by remzibi on November 26, 2009 at 1:20pm
CRS: angle of plane in degrees - is that is course from GPS ?
BER: angle of wp to plane in degrees - so can be used as arrow do actual WP destination ?
Or maybe arrow all the time will point the home only ?
WPN: waypoint index - this OK , 0 will indetyfy home - that I already knew :) .

RSP: angle of rudder in degrees - what is that exactly ? how to interpret this ?

Developer
Comment by Jordi Muñoz on November 26, 2009 at 1:23pm
Nice video Remzibi!

Developer
Comment by Jordi Muñoz on November 26, 2009 at 1:26pm
Yes is course from GPS,
BER, yes can be used as arrows to indicate the direction of the WP destination.

BER will change, if you switch to RTL automatically the BER will point to home, if you are in manual mode the BER will point to home, if you are in waypoint mode BER will point to the waypoint direction, so would be nice if you use always the arrow with BER...

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