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  1. YveltalGriffin

    FC Mumu Pro Flashcart (Review & Comparison)

    The FC Mumu Pro is a brand new, fully-original Famicom flashcart designed by 沐沐 (Mumu) for the Chinese market. Currently, it's only available on Taobao and Xianyu, and costs 388 RMB (57USD). Because it's China-only, there's no English documentation of its capabilities. So this post will...
  2. YveltalGriffin

    4" 640x480 IPS LCD Investigation (RG40XX)

    The RG40XXV screen as seen in this thread (laminated 4" 640x480 with 39-pin ZIF, needs SPI init) is now available directly from Anbernic for $28: https://anbernic.com/products/accessories?variant=47008062898433 Note that there's a limit of 3pcs per order and shipping is $35. Not ideal, but...
  3. YveltalGriffin

    Worklog [2026 Contest Entry] NEXUS-M — PS2 Reimagined with Custom Multi-Chip System

    Is this a joke? @loopj used an AI-generated banner image in his 2024 contest entry and won second place. I really hope the staff walks this decision back. AI is becoming more and more commonplace in tech hobby spaces (just look at JoypadOS) and a stance like this is just going to result in less...
  4. YveltalGriffin

    Wee Wii - Open Source Wii PCB Recreation

    Incredible work and you're a legend for open sourcing it.
  5. YveltalGriffin

    Worklog [2026 Contest Entry] Wiiwata - Wii U Portable

    Awesome to see a Wii U portable worklog! While the WUP-50's plugged vias are more difficult to deal with, they're definitely not finicky enough to warrant the ~11W hit of using a WUP-01/30/40. That's two whole Wiis worth of additional heat you have to dissipate, not to mention way more voltage...
  6. YveltalGriffin

    Flashfi.re – Yveltal's Web Store

    nandFlex and caféflex are back in stock! https://flashfi.re/products/nandflex https://flashfi.re/products/cafeflex Non-laminated 3.5" LCDs are also available at wholesale pricing ($8) https://flashfi.re/products/3-5-640x480-ips-lcd-54pin
  7. YveltalGriffin

    Discussion GameCube Pachinko Arcade Hardware

    I was browsing Xianyu, a Chinese secondhand shopping platform, in late March and happened upon some very odd-looking GameCube motherboards after searching for "Nintendo factory board": After some digging, it appears they are graphics processing cards from Japan-exclusive arcade pachinko slot...
  8. YveltalGriffin

    Modding a $15,000 Keratometer

    Cool project! Here are a few ideas: RGBtoHDMI, which uses a Raspberry Pi Zero + CPLD hat to convert RGBS to HDMI. This would require some kind of DAC, either an integrated one like you mentioned, or a resistor ladder. Also an XNOR sync combiner circuit. Overkill, but very easy and flexible...
  9. YveltalGriffin

    Flashfi.re – Yveltal's Web Store

    I've added some new LCDs to Flashfi.re. Thankfully the tariff situation has calmed down, so I can pass some epic savings on to you guys. 2.4" 800x480 IPS LCD (40pin) - $17 Laminated 3.5" 640x480 IPS LCD (54pin)- $12 4.3" 800x480 IPS LCD (40pin) - $11 5.0" 800x480 IPS LCD (40pin) - $12...
  10. YveltalGriffin

    Question Best D-Pad?

    The PS Vita 2000 has the most satisfying and precise D-pad I've ever encountered. It's a single plastic piece, but unlike every other Playstation controller, it doesn't feel stiff. The buttons are clicky, but the actuation is springy, which lets you roll it around smoothly, not unlike a tiny...
  11. YveltalGriffin

    Flashfi.re – Yveltal's Web Store

    Flashfire is open again! I was on hiatus due to a move. But the store is back up and running, with new, lower pricing: Thundervolt Lite -- now $30 Fujiflex - now $30 MelonHD - now $35 Reggie - now $2.50 ...as well as some new products! Bucky is a 3A TPS62A03A buck regulator module in the...
  12. YveltalGriffin

    Question RVL DD vs. standard driver board

    RVL-DD "power user" benefits: Pixel-perfect image on every Wii. No need for the "480p fix", which only works on some AVEs. No AVE revision lottery or smeary high frequency content. It's the sharpest possible image you can get. Automatic image centering and horizontal scaling. With VGA screens...
  13. YveltalGriffin

    Worklog [2024 Contest Entry] PS Pocket

    Who made you the arbiter of what people in other countries do with hardware they bought from public marketplaces? Your abominable reputation precedes you, but I'm still shocked at just how monstrous you really are after seeing it firsthand. Instead of lashing out at random hobbyists in an...
  14. YveltalGriffin

    Worklog [2024 Contest Entry] PS Pocket

    We don't need your permission or anybody else's to swap chips between boards, you clown. Once we purchase boards they are ours to use, modify, or destroy as we please. Stop passive-aggressively threatening Drew and the community with inane legalese bullshit.
  15. YveltalGriffin

    Worklog Baby's First Portable: SNESpresso

    SNESpresso is a really cool name! Rolls off the tongue
  16. YveltalGriffin

    Worklog PS3 R&D Thread

    BadWDSD enables noWifi + no BT through qCFW. So it'll be a persistent softmod unlike HEN and won't require internet connectivity to enable or set the time. In general on both HEN and (q)CFW, you need to relicense installed content using rap files to avoid the date/time sync error. MrMario2011...
  17. YveltalGriffin

    Question Design challenge: connecting 12 Wiis to HDMI as cheaply as possible

    The cheapest and easiest solution is a bunch of Wii2HDMI converters. AliExpress ($3.26) Amazon ($8) ElectronWarp ($24) These convert 480i/480p component to HDMI and are totally plug and play. If you set the Wiis to 480p mode, they should be lagless. VGA patches aren't ideal for your usecase...
  18. YveltalGriffin

    G-Boy 480p IPS+RVL-DD image retention

    Hi, it's likely your Wii is outputting 480i. The bob deinterlacing RVL-DD performs produces a 30Hz flicker, which causes image retention. First, confirm that MODE (TP47) is connected to 3.3V. Then you can use Settings Editor GUI to enable 480p. (For some reason, RVLoader's 480p mode injection...
  19. YveltalGriffin

    Worklog Ramslot & Ramcard

    I had an idea for a low-profile, swappable jumper pak / expansion pak for N64 portables. This would give builders the best of both worlds: a low power jumper pak for the vast majority of the library, and the ability to plug in the power-hungry expansion pak when needed for Majora, DK64, and...
  20. YveltalGriffin

    GC Nano - The Worlds Smallest Gamecube

    Thundervolt 1 and Thundervolt Lite are 100% functionally identical. Lite just has a revised PCB layout to make it cheaper
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