Prop Broadcast

Brian Carpenter

I heard in the very early days that you could get the prop to broadcast over a short peice of wire, through the air to a TV.· ins anyone doing this?· Please help me understand what i need to make it work.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔


It's Only A Stupid Question If You Have Not Googled It First!!

PJAllen

http://forums.parallax.com/showthread.php?p=590261

Post Edit --
http://obex.parallax.com/objects/category/3/?page=4


Post Edited (PJ Allen) : 1/25/2009 4:38:00 PM GMT

Bob Lawrence (VE1RLL)

This works great!!

Phil Pilgrim (PhiPi) said...
Attached is an update of my TV_WText object. Added are broadcast video-with-sound capabilities and an additional decimal function that right justifies its output in a fixed-width field.

http://forums.parallax.com/showthread.php?p=732122

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Aka: CosmicBob

Jetfire

I played around with this when I was making 8bc.

I had it running through the same resistors used for composite output, I didn't get a great output though.

For 8bc and graphics.spin you have to change two things.

Change pins to %001_0100
This sets pins 12, 13, 14 for broadcast instead of baseband.

Change broadcast to the frequency in Hz, for example, 55_250_000 for channel two.
You can use other frequencies. Use the video carrier frequency.

tvparams                long    0               'status
                        long    1               'enable
                        long    [b]%001_0100[/b]      'pins
                        long    %0000           'mode
                        long    0               'screen
                        long    0               'porch color
                        long    x_tiles         'ht
                        long    y_tiles         'vt
                        long    20              'hx
                        long    2               'vx
                        long    0               'ho
                        long    0               'vo
                        long    [b]55_250_000[/b]     'broadcast
                        long    0               'auralcog