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Mar 17, 2013, 12:34 PM
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RFnoise's Avatar
Quote:
Originally Posted by MelihK
Hi Carl,

Yes I did. But it is not an open product.
You can also do that with DIY-OSD, I can only show the way to you. Just download the ArduPilot project and isolate the altitude calculation code. Or maybe you can find BMP085 library with temperature compensated altitude calculation code on the net. Then you can integrate it into the DIYOSD code.

Sorry for this close code things but HobbyKing copying our all projects and we have to do this for surviving and supporting future projects
thank you for your understanding.

Melih
No problem! I support you! Thanks for pointing me at the right direction.

Regards,
Carl
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Mar 17, 2013, 04:00 PM
Registered User
Here's some arduino code and detailed explanations on using bpm085 here :

http://www.sparkfun.com/tutorials/253
Mar 17, 2013, 04:03 PM
Just another user
Dennis Frie's Avatar
Otherwise, feel free to copy-paste from the MAX7456 OSD project where BMP085 is implemented and OpenSource.

The altitude calculation is a linear approximation atm
Mar 20, 2013, 05:36 AM
Registered User
Hi i tried your scheme with arduino mega 2560, but there is mosi in pin 51 not 11, where i must make change in code ? i make change in pinMode(11,OUTPUT); to pinMode(51,OUTPUT); it's everything ? Thanks...
i tried non changed code, but display nothing show.

I tried now in this scheme


Thanks for any idea.
Last edited by njosef; Mar 20, 2013 at 05:54 AM.
Apr 10, 2013, 11:48 AM
Registered User
Ok, i tried on iduino nano http://www.ebay.com/itm/190746782529...84.m1439.l2649
but nothing show i tried turn slowly left or right with potenciometer but nothing happend.

Any idea ? Thanks for reply

I use version 0,18 without changes...
Apr 10, 2013, 12:09 PM
Registered User
Ok, now works. but no readable text same as this picture
i use 50k potenciometer(try 100k but nothing), diode 1N4148, i use scheme on page 1. firmware 0.18
Last edited by njosef; Apr 10, 2013 at 02:04 PM.
Apr 12, 2013, 11:57 AM
Registered User
sarky1's Avatar
NOOOO, I bread boarded it. worked perfectly, made a protoboard to fit onto my mini pro and nothing haha, back to the drawing board.

Has anyone made a protoboard like the Denis did, if so is there any chance I can see your design? with some close up pics of the front and back ?
Apr 12, 2013, 09:40 PM
Registered User
sarky1's Avatar
Yew got it, now I need to work out powering a 3.3v gps, sigh!

Quote:
Originally Posted by sarky1
NOOOO, I bread boarded it. worked perfectly, made a protoboard to fit onto my mini pro and nothing haha, back to the drawing board.

Has anyone made a protoboard like the Denis did, if so is there any chance I can see your design? with some close up pics of the front and back ?
Apr 18, 2013, 07:28 AM
Registered User
Quote:
Originally Posted by njosef
Ok, now works. but no readable text same as this picture
i use 50k potenciometer(try 100k but nothing), diode 1N4148, i use scheme on page 1. firmware 0.18
I did not try again, but I just set up a new quadcopter and I really want an osd!! did you fix this?
I am going to rebuild the project again and use an oscilloscope to find out what's wrong..
Apr 18, 2013, 09:56 AM
Registered User
sarky1's Avatar
Quote:
Originally Posted by emerge
I did not try again, but I just set up a new quadcopter and I really want an osd!! did you fix this?
I am going to rebuild the project again and use an oscilloscope to find out what's wrong..
Hey Emerge.

What Arduino are you using? I had a very similar issue with the UNO but got it working just fine with a Mini Pro
Apr 20, 2013, 05:02 AM
Registered User
no i havent time yet
Apr 25, 2013, 11:47 PM
Registered User
wow nice project! Just saw it!
I was wondering if it's possible to change the view with something similar at the image i posted..maybe modding the script of the ascii..
(only an example)
May 03, 2013, 10:06 AM
Registered User
Hello,

I know this project is old,

but is it possible to get the altitude by a BMP 085 Sensor instead of a GPS ?

I just need the alt for my OSD, nothing special.


-ironman
May 10, 2013, 09:31 AM
Registered User
I tried again and now working. But i dont know where was problem.
May 21, 2013, 12:05 PM
Registered User
The Arduino Micro is another very small board and is conveniently available at Radio Shack. I tried building the code for it, but for the Micro (essentially the same as the Leonardo) a number of constants used had to be changed because the Serial IO and timer are different from other boards. Also, the Micro has only about 28K available because the boot loader steals about 4K from flash memory and the compiled program is a bit too large to fit. (Maybe there are some tricks that can be done to reduce the memory taken up by the ASCII file.)

Has anybody else tried building this project for the Arduino Micro board?

--Van


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