Can the video game shield output be only green?

[josheeg]

Can the video game shield output be only green? I am interested in this over the white because I have a pocket projector and that can run off a battery and so can the game shield now a sheet of plexi glass or glass with a green tinge to it or maby some specal made glass reflects green. I thought the look of teteris or space invaders on a large heads up display screen would look realy neat. Any sugjestions?

[layne]

As far as I know, the tvout library can't do any color output, as that requires some extra hardware. You could possibly do black and gray, or white and gray, by changing the values of the two video resistors. There is more information about those two video resistors on the VGS Design page: http://www.wayneandlayne.com/projects/v ... ld/design/

I like you idea of a green-tinted glass. Perhaps you can get greenish plexiglass (lucite and perspex are other names) and use that? Be sure to post pictures/video if you make something awesome!

[josheeg]

I definitly will post my results. I think the white output could run through a green filter unless the white output of the projector shows up on the green tinted glass if that happens it is ok I just wanted the maximum output color from my little pico projector. So if I can avoid the loss from a green filter that would be fine.
The black is realy good because that means my projector doen;t project anything then... at least that is what I think... So you can see how the high contrast of the video game shield would look the best on this.

[josheeg]

I got the video game shield to output red text using the other demo pal or ntsc program.
So maby the frequency difference 50 to 60 hz or whatever the difference between the two are so if it makes it output red and the colors are RGB maby a adjustment could change the timing to make green and blue?



I still have not gotten the nunchucks to work I fallowed the trouble shooting.

[layne]

Hey there,

How far did you get in the nunchuck troubleshooting? Are you trying to use any other hardware with the VGS, or just the VGS and arduino?

Were you able to build the LED logic probe? Were you able to see the pattern (using that troubleshooting sketch) on any of the pins? Let us know how far you got in the troubleshooting guide, and we can figure out what to check next!

[josheeg]

I added the potentiometers to play the pong game on the VGS after trouble shooting to get something working.
But it might be too low a value of resistance they get warm.
Is their a sugjested value?

I mesured voltage with my digital metter and watched the numbers jump from 5 to 0 etc I went through the trouble shooting that way.
That way apeared to work. But the Wii nunchucks knockoffs did not respond hitting c.

[layne]

For the potentiometers, I guess their power rating determines if they'll work. Use V= I * R to find the current through the pot, and then P = V * I to find the power being lost in the potentiometer. I'd stick with at least 1000 ohm potentiometers.

Have you tried the Nunchuck library's nunchuck_demo.pde example sketch? It is simply a raw display of all the nunchuck's data. Try that one, and let us know how it works for you.

[josheeg]

I did it shown only the max values I guess and I had both of them plugged in and no responce from the buttons or sticks.
Is there a way to check the i2c id of the controlers maby that is messing with the software?

A example I2c check for handshaking like a request what devices are on the i2c port the responces would be the controllers.
It knows the i2c controlers are plugged in the game does not request the controllers.