Worklog UltraWii

Discussion in 'Wii' started by YveltalGriffin, May 16, 2018.

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  1. YveltalGriffin .

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    Well, the time has come to post my summer contest entry worklog. This bad boy has been in the works for a while. Here's the long list of sexy features:

    - OMEGA-trimmed RVK mobo (maybe just "near-OMEGA," we'll see what the case wants)
    - Polycase SL-53 case, making this one of the smallest Wii portables to date if not the smallest
    - 4x 3400mAh 18650s for ≈ 4 hours of battery life
    - 3.5" 640x480 LCD with soft-VGA direct from Wii AVE
    - Triple-stick controls because who likes d-pads anyway ( ͡° ͜ʖ ͡°)
    - Microcontroller-based power management system, which includes battery level gauging, custom regs, and some zesty secret memes (to be revealed in good time.)

    Also, I gotta give props to @Shank, since his PiiWii Pocket was what inspired me to build the UltraWii.

    I'll post pictures of progress at some point. Don't hold your breath.
     
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  2. Paul3854 .

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    My body is ready
     
  3. DeoNaught .

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    Ayyyyy it's time, I remember when you bended your nand for the first time :'3
     
  4. Nold .

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    noice! LM420 for life.. B|
    let me know if you need help relocating the AVE
     
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  5. BocuD .

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    Oh boy I can't wait to see this
     
  6. Stitches 2 and a Half Dollarydoos Staff Member . .

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    If you pull this off, you will indeed officially have the smallest Wii portable ever. Take my energy ༼ つ ◕_◕ ༽つ~ ~ ~
     
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  7. YveltalGriffin .

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    I know this hasn't been much of a worklog, but unfortunately my job and other commitments do take precedence over portablizing. I do have some backlogged updates to share, however.

    In my quest for the ULTIMATE in 3.5" Wii portable video quality, I'm using the PD035VX2 640x480 panel. The only "gotcha" with this panel is that it's not full 24-bit color like most TTL panels, it's only 18-bit. It gets around this using gamma correction and not dithering as far as I can tell. There are two readily available driver boards for this panel, a green Prime View driver board called the PVI035 v2.0 and a black NJYTouch driver board called the KYV-N2 V7.
    s-l1600.jpg s-l1600 (1).jpg

    The KYV board has a lot more passives, and is therefore less trimmable than the PVI board. The KYV also has a folding ZIF connector versus the slidey one on the PVI board. @Shank and I were curious as to whether the driver board with more passives would have a cleaner output or if there was no difference. I ran some tests using raw, unconditioned Dreamcast RGBHV to put the driver boards through their paces:

    IMG_20180611_195445.jpg IMG_20180611_194848.jpg

    The left image is from the PVI driver, and the right image is from the KYV. It seemed to me like the KYV has better gamma control, since the green area is much brighter. The individual pixels are clearer, too. For these reasons, I'm using the KYV board for this portable.

    I tried to do a full NAND relocation for the memez, and while the wiring was pretty easy, the Wii didn't want to boot. I was too lazy to rewire it with equal lengths of 34AWG, and, luckily, I don't need to do a full NAND relocation for my case.
    IMG_20180530_215219.jpg
    Here's the requisite bendy boi (since slathered with epoxy) :
    IMG_20180629_225715_2.jpg
    And finally we have a relocation that I did based off of Nold's. Before Aurelio's WiiGA stuff, I was going to have to use a GCVideo to get the VGA I needed, but now I can just relocate the AVE and let the pizza magic do the heavy lifting. Thanks @Aurelio! ヽ༼ຈل͜ຈ༽ノ
    IMG_20180711_205135_2.jpg IMG_20180711_205126_2.jpg IMG_20180711_215123_2.jpg IMG_20180712_000729_2.jpg
    ...and yes, a (bricked) Wii was sacrificed to get this AVE daughterboard. I'd post pictures of the donor, but they're too gruesome. Also, ignore that big red wire sticking up, it was unecessary and has been removed.

    More progress has been made but not documented. The triple-stick controls will probably use a deadbugged microcontroller as a comparator, and I've been reworking my regulator-charger-audio amp board, fixing shorts and whatnot. In the meantime, here's a render of the board and a photo of the two custom boards I'm using.
    WPMS v2.0.brd (1).png IMG_20180716_172206.jpg
     
    Last edited: Aug 2, 2018
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  8. YveltalGriffin .

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    Double-posting because I have too many attachments.

    Here's how the software VGA looks on the 3.5" 640x480 LCD. (V is for vaseline filter... Why, Nintendo, why?!)
    IMG_20180624_011104.jpg IMG_20180624_011708.jpg
     
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  9. DeoNaught .

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    EDA is nice and all, but have you tried showing off Your Model work? >:3


    Nice work btw, AVL looks like hell to reloc
     

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