Next attempt

Programing Ardu with original USB is easy - modyfications and compiling of sources in Ardu IDE is also easy .First how to connect GPS from OSD to Ardupilot .We must made a small hardware modyfication - add diode to suplly Vcc to GPS module and that all .[img]http://rc-cam.info/files/dioda_213.jpg[/img]

Next thing is modyfication in software - so in easystar.h file we must modyfiy line for GPS configuration like that:[code]#define GPS_PROTOCOL 0 [/code]Then in GPS_NMEA file like on picture :[img]http://rc-cam.info/files/symul_comment_740.jpg[/img]

On bottom we see information send by Ardupilot - all is working in simulation mode with OSD GPS emulator software using two OTi cables - one is playning GPS with GPS emulator from remzibiOSD PC programand another port is monitoring TX line of Ardupilot .[img]http://rc-cam.info/files/s6301095s_117.jpg[/img]

Also GPS is working as well with Ardupilot :[img]http://rc-cam.info/files/s6301098s_212.jpg[/img]

As on simulation picture there are ATL problem - all time is 0 so I must to look closer why , maybe this is Ardupilot normal work .So in future - instead of monitoring cable will be pilot's TX to OSD's RX one connection to get Ardupilot data .Ok first practical try is done :) - all works fine , for next I will made some debug printing from Ardupilot and will start practical Ardupilot-OSD cooperation .Lastly - the main problem I have is a very short time I can spend for this nice playing with all this nice toys :) .

You need to be a member of diydrones to add comments!

Join diydrones

Comments

helitron July 13, 2009 at 10:03pm

Have also decided to do the same, thanks though.

Erwin
Developer

Mark Colwell July 13, 2009 at 2:51pm

I shrink wrapped mine, not water tight, but protects unit.
helitron July 13, 2009 at 11:03am

Thanks Jordi !

Erwin
Developer

Jordi Muñoz July 13, 2009 at 9:40am

I dont know! Sparkfun just stop giving it for free.
helitron July 13, 2009 at 7:04am

@Jordi,

a bit off topic question, from where have you got this nice black cap for the helical antenna of the ublox GPS-Rx ? Have got one but with the naked antenna only (I know you mentioned that before).

Erwin
remzibi July 12, 2009 at 1:59pm

That explain me ALT problem :) (no problem) .
Thanks for IR , confirm on my email when you got package from me :) .
Developer

Jordi Muñoz July 12, 2009 at 1:37pm

Hello Remzibi!

"As on simulation picture there are ATL problem - all time is 0 so I must to look closer why , maybe this is Ardupilot normal work" The Ardupilot"

You mean ALT? Ardupilot always zero your altitude. =)

This Monday i will ship your Infrared sensors!
helitron July 12, 2009 at 8:57am

remzibi,

great, thanks for the info, exactly what I wish to have :-).

Erwin
remzibi July 12, 2009 at 7:58am

Yes - it will be possible to use any GPS , Ublox , SIRF binary or standard NMEA - all depends what GPS anybody have - with autopilot can be used any .
The idea is that autopilot work as "master" unit and OSD will serve as "slave display terminal" to display any data provided by autopilot by TX output , the ardupilot baud rate will be detected by OSD .
So my first try will be use the math of autopilot and provide only displaying ability and scalerd and calibrated ADC (this will remaid as is in OSD inputs) .
First problem why I have ALT as 0 all the time :) .
helitron July 12, 2009 at 7:38am

remzibi,

forgot to mention, would be great when it would be possible to use the ublox protocol also for both ArduPilot and remzibi OSD. Just received one of those new GPSRx with LEA-5H chipset and Helix antenna, recommended from Jordi: http://www.sparkfun.com/commerce/product_info.php?products_id=8889

Erwin

of 2

This reply was deleted.