Component Video Hat

[mikechi2]

@tjohnson The idea is indeed the same as Gert -- the ICs are amplifiers are for mixing the RGB -> Component. Also there's a voltage regulator; I don't trust the PI to have clean outputs on the GPIOs.

For the next gen, I was thinking of using a real triple video DAC but it looks like they're quite pricey. A R2R ladder would be better though, the problem with the current design is the need for binary scaled resistors which are also hard to find over a range of 8 decades.

[mikechi2]

@IcyFever Haha, thanks! If I ever get there you'll be the first to know! Yeah, I really lucked out - found one on Craigslist yesterday for $30. I didn't even know about the FV310 until you mentioned it. I used to have an older WEGA but the FV310 really surprised me on how sharp it was.

[mikechi2]

Hi Guys,

Here's an update. Thanks again for all your help and kind comments! I figured out all the scaling issues and everything works nicely. I'm as happy as a cat :)

Also designed generation 2:

It should solve the noise problems, be easier to build and adds a NTSC encoder for S-Video and composite outputs!

[mikoy]

looking forward to this! just amazing, this is everything i ever wanted.

[edmaul69]

@mikechi2 not sure why i never saw this thread. I am very much i terested. As long as i dont have to do any programming i am ok with assembling it myself if it makes it easier for you. I have been obsessing about going crt lately. Since you mentioned a scope, i also decided to build a circuit to use one of my scopes as a tv. Just because i can. :)

[mikechi2]

Thanks guys :) The next gen is done. It adds S-Video (which looks awesome and really makes it compatible with most higher end TVs) as well as composite (which is crap):

Still need to shoot down some bugs. In the meantime, I might also suggest checking this out to get your 240p (via composite) fix:

https://retropie.org.uk/forum/post/60639

Will keep you posted!

[edmaul69]

@mikechi2 im going to need to buy some some video cables for my pi-station 1. I have the original video port still for composite. Now i am going to have to wire s-video and component to it as well. :) 😊

[mikechi2]

@IcyFever @edmaul69 @mikoy

Thanks everyone, check out my site for more info: www.retrotink.com

[edmaul69]

@mikechi2 can you post what settings we need to set/add in the config.txt or anything else we need to change to get this to output video?

[mikechi2]

@edmaul69 Good question. Argh, I don't have permission to upload a file. I'll post detailed instructions on the website this weekend along with some notes about how I'm configuring my emulator settings and get back to you ASAP!

[edmaul69]

@mikechi2 awesome. Thank you.

[mikechi2]

@edmaul69 Updated the website with some instructions!. Will keep updating - there's rapid progress in the community towards better tweaking and optimizing the settings.

[Rion]

@mikechi2 Hi mike! Any news about RetroTINK-ULTIMATE?