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Ole Man Earl
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  		   Posted 5/3/2009 7:24 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
I know its been done. I have an LM1881 sync separator chip. I want to overlay the TV video I am generating now on top of some camera video. How do you sync the two? How to 'paint' the prop generated video ? This is for my autopilot project

Post Edited (Ole Man Earl) : 5/7/2009 1:58:40 AM GMT

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Mike Green
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  		   Posted 5/3/2009 7:44 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Bean (Hitt Consulting) has had a Propeller video overlay module. The schematic and software were open source. He seems to have closed up shop, but here's the stuff from his website that I downloaded some time ago. I believe he was using an improved version of the LM1881.

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HITT_HC-OSD_012.zip   424KB (application/zip)
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Phil Pilgrim (PhiPi)
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  		   Posted 5/3/2009 7:47 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
I don't know that he's actually closed up shop. Although the website seems to be down right now, a whois query reveals that he renewed the domain name just last month.

-Phil
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Mike Green
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  		   Posted 5/3/2009 7:51 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
SparkFun has a couple in stock as well as a couple of his Prop Dongle boards and a couple of his SX-based video overlay devices.

His website did say that he's no longer selling products through his website as of April 1st according to a snapshot by Google.
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mctrivia
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  		   Posted 5/3/2009 8:26 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
renewel of domain can mean nothing. i have several domains set to auto renew every year.

Need to make your prop design easier or secure? Get a PropMod has crystal, eeprom, and programing header in a 40 pin dip 0.7" pitch module with uSD reader, and RTC options.

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Ole Man Earl
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  		   Posted 5/4/2009 11:08 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
I got it working using an LM1881 and his HITT_Video_overlay_012 code. Works ok, but still has some problems. Gotta run right now, but I will be back tonight.
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Bob Lawrence (VE1RLL)
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  		   Posted 5/4/2009 11:17 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Mike said...
His website did say that he's no longer selling products through his website as of April 1st according to a snapshot by Google.


]Hitt Consulting said...
Hitt Consulting Home Page

We are sorry, but we are no longer selling products as of April 1, 2009.

Aka: CosmicBob

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hover1
I have 3 Propellers



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  		   Posted 5/4/2009 12:38 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Ole Man Earl said...
I know its been done. I have an LM1881 sync separator chip. I want to overlay the TV video I am generating now on top of some camera video. How do you sync the two? How to 'paint' the prop generated video ? This is for my autopilot project
@ Old Man Earl   I believe Bean switched over to: The EL1883 because it works at 3.3V. The LM1881 requires 5 volts.
 
EL1883 still seems to be a current product from Intersil. LM1881 still works, but for future projects I'll opt for the EL1883.
 
Regards,
 
Jim
 

 
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Ole Man Earl
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  		   Posted 5/4/2009 4:20 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Yea, I am gonna order a few 1883's cause of the 3.3v operation.
Anyone else need one ?
Here is a crappy screen shot of the overlay...

Post Edited (Ole Man Earl) : 5/5/2009 1:07:39 AM GMT


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QuattroRS4
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  		   Posted 5/4/2009 5:19 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
in the meantime you can get some data on Beans HC-OSD here ..

www.igniteautomation.com/hc-osd.html

Regards,
John

'Necessity is the mother of invention'
Those who can, do.Those who can’t, teach.

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Ole Man Earl
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  		   Posted 5/4/2009 5:25 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
I think I have figured out how to use it ! See picture above. Now to put in lines, circles bars etc...Maybe an artificial horizon ? How about an arrow pointing to point of launch...
Any other ideas ?
BTW, this takes up about the same room as tv.text that I don't need now AND it only takes up 2 PINS.

Another pic here
You can see even in a bright area of the screen the data comes thru...

Post Edited (Ole Man Earl) : 5/5/2009 2:09:09 AM GMT


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Philldapill
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  		   Posted 5/4/2009 7:39 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Earl, is the image on the screenshot an actual photograph overlay, or is that a glare image of your surroundings?
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Ole Man Earl
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  		   Posted 5/4/2009 7:49 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
The data is overlayed on a very bad camera. There is glare on the camera lens. The screen is a 22" monitor
The LM1881 chips composite output pin 1 goes to pin 0 of the prop. pin 1 of the prop go to a video out connector. The camera input connector has a 47 ohm resister to the output jack and a connection to pin 2 of the LM1881. Sounds complicated, but this is simpler than using tv.text object !
here is another shot while I look for a better camera !

Post Edited (Ole Man Earl) : 5/5/2009 4:20:18 AM GMT


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Ole Man Earl
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  		   Posted 5/4/2009 8:23 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
The JVC camera overlays almost overwhelm my prop overlays.Jvc in foreground and me taking picture of monitor with my iPhone.
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heater
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  		   Posted 5/4/2009 10:09 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Earl that looks great. Any chance of a schematic when your done?

For me, the past is not over yet.

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Ole Man Earl
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  		   Posted 5/5/2009 8:54 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Pardon the crudeness....



           1K  
'    P0 ─────────────  EL1883 Pin 1 (Comp Sync out)
'
'           1K        220      (1K Intensity res. can go as low as 200 ohms)
'    P1 ─-──────────  Video Out to monitor (RCA)
'               │
'               │
'           ┌───┘
 '          │   47
'           T──i─────  Video Input from camera (RCA)
'                       |
'                       L────  EL1883 Pin 2 (Video In)
'                               .1uF
'                 
'
'                 ┌─────  EL1883 Pin 6 (RSet)
'                  681K to Gnd 
'                 
'                  +3.3v EL1883 Pin 8

                   Vss Ground EL1883 Pin 4

Post Edited (Ole Man Earl) : 5/5/2009 6:50:48 PM GMT

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Ole Man Earl
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  		   Posted 5/5/2009 9:38 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Update on software...now with the video overlay.

This project has grown far bigger than I had planed !

Post Edited (Ole Man Earl) : 5/5/2009 7:37:32 PM GMT



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heater
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  		   Posted 5/5/2009 10:14 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Earl, no problem, we like crudeness around here:)

I think this is brilliant. Just what I need to put alerts and alarms up on the TV when everyone is glued to it.

Anyone know how it would be possible to do this using SCART on PAL TV. It would have to sit between my telly and the digibox.

For me, the past is not over yet.

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Baggers
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  		   Posted 5/5/2009 10:28 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
heater, it depends on wether your digibox is sending composite over the scart, or RGB
either way it'd be possible, you'd just have to approach it in a different way if it's RGB but still possible :D

http://www.propgfx.co.uk/forum/ home of the PropGFX Lite
 

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heater
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  		   Posted 5/5/2009 10:30 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Hmm.. No idea yet, video is still a big mystery to me.

For me, the past is not over yet.

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W9GFO
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  		   Posted 5/5/2009 11:47 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Pretty impressive, you went from;

Ole Man Earl said...
How do you sync the two? How to 'paint' the prop generated video ? This is for my autopilot project


To:

Ole Man Earl said...
I think I have figured out how to use it!


In less than 24 hrs, with pictures, code and a schematic!

Definitely something that I want to duplicate.

Rich H
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Ole Man Earl
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  		   Posted 5/5/2009 11:56 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Well when ya work on it 12 hrs a day.....
I'm retired and have a lab in my house on the ranch here in NM. Only time I get nervous is when the horses come snooping around !
PS. Ya work harder and longer when your retired....
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Ole Man Earl
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  		   Posted 5/5/2009 12:15 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Here is another screen shot. The camera is pointed out the back window and the overlay data is brighter now. Pardon the glare in the upper left. The monitor is next to the window.
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heater
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  		   Posted 5/5/2009 12:58 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Earl: "Ya work harder and longer when your retired..."

I'm looking forward to it. My father bought his first computer and started to learn to program it when he retired in the early 1980s.

Trouble is it doesn't look like I'll have the ranch or the horse by then:(.

For me, the past is not over yet.

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Oldbitcollector
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  		   Posted 5/5/2009 1:03 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
Earl,

I picked up a few of those chips a year ago..
You're starting to motivate me to locate them.. :) Awesome work!

OBC

New to the Propeller?

Visit the: The Propeller Pages @ Warranty Void.

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