TV Toy

Newzed

My great-granddaighters got one of those Etch-a-Sketch thingies you plug into your TV and they can draw on the TV screen, connect dots, and who knows what else.· Does anyone know how those things work?· I'd love to make something with a Stamp that would let me do the same thing, maybe even a "pre-programmed" sketch or drawing I could display.

Sid

Batman

O i know those eyetoys

Bean

Sid,
Either of my video modules that Parallax sells will let you "draw" on the tv screen.
The OSD (overlay) module has higher resolution, even if you don't need the overlay function.
Bean.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"SX-Video·Module" Now available from Parallax for only $28.95

http://www.parallax.com/detail.asp?product_id=30012

"SX-Video OSD module" Now available from Parallax for only·$49.95
http://www.parallax.com/detail.asp?product_id=30015

Product web site: www.sxvm.com

Forget about the past, plan for the future, and live for today.
·

Newzed

Thank you, Bean.· I think the OSD is what I want.· A couple of questions:

Suppose I want to draw a vertical line.· Would I write:

for ix = 1 to 50
serout pin, baud, [noparse][[/noparse]plotxy, 1, ix]
next

If so, then it follows that if I had my laptop connected to the Stamp, I could program graphics on the TV screen in real time.

From what I read, the OSD overlays whatever you send on a running TV program.· What if I wanted a perfectly blank screen.· If I go to a channel where there is no signal, I will get lots of snow.· Can I get a clear screen in a color of my choice?

Thanks in advance.

Sid

Bean

Sid,
Yes you are correct about drawing lines.
The OSD module will overlay IF a video signal is present on the input, if you don't put a video signal in, you will get a black screen with your text/graphics on it (I think this is what you want).
Bean.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"SX-Video·Module" Now available from Parallax for only $28.95

http://www.parallax.com/detail.asp?product_id=30012

"SX-Video OSD module" Now available from Parallax for only·$49.95
http://www.parallax.com/detail.asp?product_id=30015

Product web site: www.sxvm.com

Forget about the past, plan for the future, and live for today.
·

Newzed

Thanks, Bean.

So if I hook up the OSD to my TV that has a program running, the OSD will disable the incoming program, turn the screen black and produce white text or graphics?· Is there any way to make the screen, say, light blue?

Can the color of the OSD output be changed?· What I have in mind is graphing the output of an EEPROM on the screen.· What is the size in pixels of my TV screen?

Thanks

Sid

Bean

The OSD won't disable anything. You simple connect the OSD to the video (Yellow RCA jack) input on the TV.
The only way to make the background light blue would be to have something that generates a solid light blue screen and use the overlay function.
The module does not and cannot generate color.
What kind of info is stored in the EEPROM ?

Is this something you will build and sell ? Or is it just for you ?
A custom high-res module could be developed.

Bean.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"SX-Video·Module" Now available from Parallax for only $28.95

http://www.parallax.com/detail.asp?product_id=30012

"SX-Video OSD module" Now available from Parallax for only·$49.95
http://www.parallax.com/detail.asp?product_id=30015

Product web site: www.sxvm.com

Forget about the past, plan for the future, and live for today.
·