On Screen Displays?

[Ramius]

Hi All!
I thought maybe I would re-visit this question about finding an on screen display / character generator that has color characters. It would seem with all the drones out there someone must be making a device to provide the information about your drone. I know Eagletree has one however they will not allow their OSD to run on third party software such as a PIC.

Thanks, Ed

[enigma]

I`m still looking too, there must be something out there. I was monitoring this project http://www.rcgroups.com/forums/showthread.php?t=1290963 but it seems to be dead now. B&W only but had potential
Cheers Pete

[HenrikOlsson]

You don't say if it's for VGA, HDMI, PAL, NTSC etc and/or if it needs to overlay the OSD data onto an existing video signal or "just" put the data on a blank screen so I can't really "filter" my search but the LC74736PT is a 16 color OSD chip for QVGA and WVGA.

/Henrik.

[Ramius]

Hi Henrik!
Your right I should have been more specific. I wish to overlay PIC sensor readings onto an incoming NTSC (Never Twice the Same Color, LOl) 4:3 video camera. It is for my submarine and the video is from the periscope camera. I have found a post of someone who has done this and they do not answer any e-mails.

Best, Ed

[F1CHF]

hello,
do you need Fixed message (EX : camera 1)
or variable text
temperature, position .... etc
I think you are using PAL video !
forget NTSC one

Francois F1CHF

[Art]

Edited... you did say colour! :P

[Ramius]

Hi All!
My wish is to overlay readings from built in sensors in my submarine such as port motor speed, port motor temperature , starboard motor speed, starboard motor temperature, water temperature, compass heading, torpedo status (green for torpedo read, red for torpedo already fired), missile status, depth, sound selected, bow plane angle, stern plane angle, rudder angle, pitch angle, roll angle, battery voltage and current, and a warning if water were to get into the water proof housing with all the electronics. It would be great to color code all the readings such as red for port reading, green for starboard and other colors for the other readings. I have a periscope that uses an NTSC color camera.

Best, Ed

[Art]

Well I was looking into this for a project, but didn’t get to use it:
https://www.maximintegrated.com/en/p...s/MAX7456.html
I edited it above because it’s not only a monochrome overlay, but also I don’t know if it will ruin a colour source video.

Have you searched Hackaday for a project like that?

[JKaiser]

The video at the link http://www.mikroe.com/click/osd/ looks like color video input with that 7456 chip on the module.

??

[Ramius]

Thanks guys!
The 7456 chip is a "monochrome" chip so text is only in white.

[JKaiser]

Sorry i missed the color txt comment twice. Will the bob-4 do color txt? http://www.decadenet.com/bob4/bob4.html

[Ramius]

I wish it could and sadly the BOB-4 is only white characters. Eagletree makes a text inserter with color text however they will not disclose how to talk to it.

Best, Ed

[Art]

The reason the maxim chip was going to get expensive for me was
I was planning to use 3 of them,
one on each of the RGB signals,
so I should have got colour, but at a cost.

[CuriousOne]

It is possible to get dedicated chip, but you will need much more hardware.
Old CRT monitors have color OSD chip, which is I2C driven (forgot model, but you can find it with ease). The main issue is that it operates with RGB data. So to use it with your video in video out, you will need to "disassemble" your video signal, add OSD and "assemble". The above mentioned maxim chip passes color without problems, I've been using it with PICBASIC (adapted basic stamp code)

[Ramius]

Hi All!
So far all I have found is the STV5730A chip. Mainly my Google search abilities seemed to have become limited. Blackboxcamera did have a unit some time ago. I did call STMicro and contacted Blackboxcamera and struck out. Someone must have something on this chip?

Best, Ed

[F1CHF]

hello
sure I have that you need in term of STV5730A .. let me search in my junck ...
if I forget to come back .. ring me F1CHF at FREE dot FR

[Ramius]

Hi F1CHF,
WB6NSN (Ed/Ramius) here! Thank you and I did by some as well as an SO28 to DIP adapter board. Did you have any luck with you code? How about with your antenna pointing system? I read a very old post of yours and if you did not get your antenna system to work then you might want to use the old trick of using a pot with a fixed resistor across it!

[F1CHF]

hi WB6NSN
I didn't understand if you have done "something" using this old STV5730
for my antenna position, I do not remenber, it was for our TVA repeater, but now it is dead !
the house where the repeater was installed is down ...
I see this article .. inscrustation in French means OSD ..
have a look http://f5mna.free.fr/Arduino.htm
good luck
Francois

[Ramius]

Hi Francois!
Actually I have not done anything yet, still researching the options. In my previous post I just wanted you to know that I was also an "amateur radio" or "ham" radio operator also! The link you posted (Thank you) is for the MAX7456 which is a common white text only chip design and not a color text chip like the STV5730A. The STV5730A had, at one time, been considered "end of life" and the demand for the chip caused the manufacturer to start producing them again so they are not difficult to find anymore. I was hoping to find a PIC program for the STV5730 rather than having to "re-invent the wheel". Sorry about your repeater I miss my as well. If you find any programs for the STV5730 please let me know.

Thanks, Ed

[F1CHF]

YES I have done ! for a compagny who do not exist anymore !
don't kick my leg, it was in 2006 or 2008 so the design is in Beginner mode !
You will find all I have here :
http://f1chf.free.fr/TDC/autonome

tell me when the download is clear on your side, I will delete it after.
and as far as I remember TEXTS were in White ... no color needed in this application

feel free (direct F1CHF at free dot fr)

happy new year for everybody, a super Christmas first
Francois

[Ramius]

Thanks Francois!
Very interesting! The circuit board is a little confusing I see the xtal for the PIC and STV5730 and no STV5730!

[F1CHF]

you are right because the TOP board hide the Bottom one
don't hesitate to use the PROTEUS software to see the files ISIS and ARES
there is a demo version here
http://www.labcenter.com/index.cfm

if I have your email I will try to send you better files
francois