proto board tv wiring

Humanoido

I have the RCA to Breadboard Adapter to add TV but where are the instructions?
The idea is to add the accessory pack for mouse, keyboard, vga and then add
the RCA adapter for TV composite video.

I checked the prop proto board manual, Cookbook, and Jeff Ledger's
Intro to the Propeller Protoboard, PE Lab Manual, and Propeller Manual
but didn't see it.

Item code 28050 RCA to Breadboard Adapter Price $4.99
www.parallax.com/Store/Accessories/CablesConverters/tabid/166/CategoryID/40/List/0/catpageindex/2/Level/a/ProductID/514/Default.aspx?SortField=ProductName%2cProductName

humanoido

localroger

You need three resistors from three prop pins to the RCA jack center pin; you can get the values and good pins to use·from the Demoboard or PropRPM schematic.· The RCA jack outside jacket of course goes to ground.· I have mounted RCA jacks on the VGA connector spaces of several Protoboards, but you still have to put the resistors on prop pins and separately wire out to the connector, since the protoboard only supports VGA through the built in traces.

Oldbitcollector (Jeff)

This will help you...

ucontroller.com/Propeller%20Protoboard%20Designs%20for%20the%20Beginner.pdf

OBC

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New to the Propeller?

Visit the: The Propeller Pages @ Warranty Void.

rjo_

I had a problem with this that I never quite understood... until I got my son the learning lab
and wanted to add video. It turns out that the 3 resistor solution is the one that works best...
and the values for a three pin solution are different values from the 4 pin setup.

there is also a one pin solution and someone is probably building a sixteen pin solution as we
speak[noparse]:)[/noparse]

The base pin is 1K, next up is 470ohm
then on the third pin is a 220ohm. you run each of these to the same place and this becomes your
signal line. take you groud from you connector back to your your Prop ground.

I futzed and futzed and futzed with this[noparse]:)[/noparse]

rich

rjo_

by the way... one of my problems was that I didn't have exact resistor values and
didn't choose my combinations to keep the current ratio's correct. the exact values
are in Radioshack's big resistor pack.

Cluso99

The correct values are 270R, 560R and 1K1.

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Links to other interesting threads:

· Home of the MultiBladeProps: TriBlade,·RamBlade,·SixBlade, website
· Single Board Computer:·3 Propeller ICs·and a·TriBladeProp board (ZiCog Z80 Emulator)
· Prop Tools under Development or Completed (Index)
· Emulators: CPUs Z80 etc; Micros Altair etc;· Terminals·VT100 etc; (Index) ZiCog (Z80) , MoCog (6809)·
· Prop OS: SphinxOS·, PropDos , PropCmd··· Search the Propeller forums·(uses advanced Google search)
My cruising website is: ·www.bluemagic.biz·· MultiBlade Props: www.cluso.bluemagic.biz

hover1

The schematic for the demo board if very usefull for finding values of components. I keep one hanging on my wall for reference. And it's easy to get to from the Propeller Tool from the help menu.
Jim

Humanoido

Thanks for all the good replies. What I'm looking for is a parts placement image
showing where to solder the RCA jack and resistors, on the Propeller Proto Board.

If there is a standard location, I want to follow it. If not, I can just follow the
schematic and put the jack anywhere on the board.

humanoido