Default "line" setting - cuts off bottom portion of overlay





With adjusted "line" variable, at 40.





As you can hopefully finally see, changing this variable just shifts the entire overlay up causing the top portion to now be cut off. I don't know how to be any more clear about this than I have been.

Simply put, the overlay (OSD) image needs to be shrunken down vertically, It's to tall to fit the screen

If you have anything specific you need from me, please do tell.

Originally Posted by Tw34k

Simply put, the overlay (OSD) image needs to be shrunken down vertically, It's to tall to fit the screen

Config.h what is your VIDEO_SYSTEM?

//===========================
// Video system: PAL or NTSC
//===========================
// Pal = 0, NTSC = 1
#define VIDEO_SYSTEM 0

Are you trying to overlay a PAL OSD on NTSC signal?

The config is set to 1 (NTSC)

The camera out is also set to NTSC @ 4:3 aspect ratio.

I briefly came across a post last night where someone else had similar issues, said it had something to do with the latest version of code not working well. All of the previous versions are in .doc format for some reason so until I get the chance to sit down at one of my other computers I'm at a stand still.

Originally Posted by Tw34k

All of the previous versions are in .doc format for some reason so until I get the chance to sit down at one of my other computers I'm at a stand still.

No, the file ends in .doc ( probably because the attachment system here is screwy ) but the files themselves are just .cpp/plain text.

from the first post:

The code can be opened with notepad++ or Arduino IDE. Please rename to .pde instead of .txt when using with Arduino.

Version 17 seems to work so far, the screen fitment issue looks to be gone.

Originally Posted by Tw34k

Default "line" setting - cuts off bottom portion of overlay





With adjusted "line" variable, at 40.





As you can hopefully finally see, changing this variable just shifts the entire overlay up causing the top portion to now be cut off. I don't know how to be any more clear about this than I have been.

Simply put, the overlay (OSD) image needs to be shrunken down vertically, It's to tall to fit the screen

If you have anything specific you need from me, please do tell.

Your cam output is 4/3 but the screen is 16/9 (I think). Perhaps the screen is streching the picture to fit the wider format. Look at Your screen setup.

No, I had already tried changing aspect ratio, it only cuts off the sides when changed. It seems it is in fact a version 18 issue, solved by using version 17 instead. I'll try and post some follow up pictures tomorrow.

There is a little bug in the NTSC settings in software version 0.18 mentioned before. As far as I rememer, it was a simple mistake with some capital-letters that makes NTSC-setting faulty.

If you can please check the #if VIDEO_SYSTEM routine

Line 154 in config. If you can please try to change "#if (video_system == 0)" to:
#if (VIDEO_SYSTEM == 0)


This is the code-part where it's used:
#if (video_system == 0)
// PAL
#define toplinetext 41
#define toplinenumbers 51
#define butlinenumbers 271
#define timer_line 252
#define gps_nmea_line 32
#define summaryline 102
#define current_calc_line 292
#else
//NTSC
#define toplinetext 24
#define toplinenumbers 34
#define butlinenumbers 229
#define timer_line 210
#define gps_nmea_line 15
#define summaryline 100
#define current_calc_line 260
#endif

Hi
I would like to thanks Dennis Frie and other contributors for such great project!
I realized DIYOSD with LM1881 on breadboard from bare components (no stupid arduino pro mini), recycled GPS module from remzibi and it simply works!

Next time I would design proper PCB, probably cheap single sided without mask, as breadboard is too laborious and not pretty at all.

Can't wait to try it in air.
Thanks!

nice

Originally Posted by kolin

Hi
I would like to thanks Dennis Frie and other contributors for such great project!
I realized DIYOSD with LM1881 on breadboard from bare components (no stupid arduino pro mini), recycled GPS module from remzibi and it simply works!

Next time I would design proper PCB, probably cheap single sided without mask, as breadboard is too laborious and not pretty at all.

Can't wait to try it in air.
Thanks!

Great Job kolin, there is no shame in bread boarding providing we only want a limited number of systems.

Here is my LM1881 bread boarding project based upon Dennis' design, it sits on top of an Arduino ATMEGA1280 and run MultiWii Firmware. The OSD is mobiDroneOSD.

There is STILL Life in the LM1881 design.

I've been testing DIYOSD on a breadboard with an Arduino UNO and an old TV. I had to adjust the line settings pretty dramatically for it to all show up on the screen. I thought I would post this for those having trouble with the top/bottom being cut off.

Here are my NTSC settings:

  //NTSC
  #define toplinetext 54
  #define toplinenumbers 64
  #define butlinenumbers 214
  #define timer_line 195
  #define gps_nmea_line 45
  #define summaryline 90
  #define current_calc_line 260

Here's what it looks like:



Cheers,

- Jason

Old TVs cut a lot but Goggles and recorders don't so no adjustments needed unless you are taking your old TV to field