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    RetroPie in a Dreamcast VMU!

    Scheduled Pinned Locked Moved General Discussion and Gaming
    handheldvmu
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    • obsidianspiderO
      obsidianspider
      last edited by

      …and I just ordered two small TFTs and two VMUs on eBay. (Gotta have a backup)

      📷 @obsidianspider

      mooseprM 1 Reply Last reply Reply Quote 0
      • edmaul69E
        edmaul69 @obsidianspider
        last edited by

        @obsidianspider looks cool. Except for the odd split screen.

        obsidianspiderO 1 Reply Last reply Reply Quote 0
        • obsidianspiderO
          obsidianspider @edmaul69
          last edited by

          @edmaul69 I think they broke the TFT. The video says it's a prototype, so I'm guessing that'll be swapped out for one without the line in it. I've certainly not seen anyone put a Pi in a VMU before, though there is this thread over at sudomod.

          Shipping time on the TFTs I just ordered is about a month, and for the VMUs it's about a week, so we'll see what happens.

          📷 @obsidianspider

          1 Reply Last reply Reply Quote 2
          • FlyingTomahawkF
            FlyingTomahawk
            last edited by

            Shit, talking about narrow space. lol
            I was already stunned by the Game Boy Micro. So small and capable of normal game play, if your fingers are small enough.
            This here is crazy. Who would want that? And besides you can play only NES stuff with it (2 buttons only)
            But hats of to them that is some crazy work right there.

            obsidianspiderO 1 Reply Last reply Reply Quote 1
            • mooseprM
              moosepr @obsidianspider
              last edited by

              @obsidianspider you will never fit a pi3 in there!

              want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

              1 Reply Last reply Reply Quote 1
              • mooseprM
                moosepr
                last edited by

                I think his thread is actually this one

                http://www.sudomod.com/forum/viewtopic.php?f=13&t=2644

                The space is workable, would be lots easier with a custom PCB, reduce the bulk

                want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                obsidianspiderO 1 Reply Last reply Reply Quote 1
                • obsidianspiderO
                  obsidianspider @FlyingTomahawk
                  last edited by

                  @FlyingTomahawk I think it's more about doing it just to see if it's possible. I would love to see photos of the inside, but that video seems to be all that is out there about that build.

                  Then again, there isn't a lot out there about the insides of the Burger King Gameboy Colors and I'm attempting one of them too…

                  📷 @obsidianspider

                  mooseprM 1 Reply Last reply Reply Quote 1
                  • mooseprM
                    moosepr @obsidianspider
                    last edited by

                    @obsidianspider I like how the vmu icon has appeared in your signature already! :P

                    want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                    obsidianspiderO 1 Reply Last reply Reply Quote 1
                    • obsidianspiderO
                      obsidianspider @moosepr
                      last edited by

                      @moosepr Well, I ordered one already, (two actually) so it's as far along as the Burger King project that's in a box. ;) I'll start a thread for that once parts show up.

                      📷 @obsidianspider

                      mooseprM 1 Reply Last reply Reply Quote 0
                      • obsidianspiderO
                        obsidianspider @moosepr
                        last edited by

                        @moosepr I can't seem to find the OLED display that was used on satri360's build, but the tfts I ordered from China were $4 each, so I think it's worth the experiment.

                        📷 @obsidianspider

                        mooseprM 1 Reply Last reply Reply Quote 0
                        • mooseprM
                          moosepr @obsidianspider
                          last edited by

                          @obsidianspider if you have ordered the 1.44 inch tft screens, you can actually remove it from the pcb and wire it direct

                          https://twitter.com/Pi0CKET/status/845405718303952896?s=15

                          want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                          obsidianspiderO edmaul69E 3 Replies Last reply Reply Quote 1
                          • mooseprM
                            moosepr @obsidianspider
                            last edited by

                            @obsidianspider His is the adafruit oled with the sd card

                            He seems to have trimmed the PCB down to save space

                            want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                            1 Reply Last reply Reply Quote 1
                            • obsidianspiderO
                              obsidianspider @moosepr
                              last edited by

                              @moosepr You read my mind, good sir. I actually thought of you when I was contemplating the attempt! If for no other reason than to figure out how to pin it and if fbtft would work. Watching some Greek and Russian YouTube videos about the screen lead me to learn that it's got an ILI9163 driver, so it should work with the latest incarnation of fbtft. An interesting note about those screens is in the code comments

                              /*

                              • This display:
                              • http://www.ebay.com/itm/Replace-Nokia-5110-LCD-1-44-Red-Serial-128X128-SPI-
                              • Color-TFT-LCD-Display-Module-/271422122271
                              • This particular display has a design error! The controller has 3 pins to
                              • configure to constrain the memory and resolution to a fixed dimension (in
                              • that case 128x128) but they leaved those pins configured for 128x160 so
                              • there was several pixel memory addressing problems.
                              • I solved by setup several parameters that dinamically fix the resolution as
                              • needit so below the parameters for this display. If you have a strain or a
                              • correct display (can happen with chinese) you can copy those parameters and
                              • create setup for different displays.
                                */

                              I really need to stay off the Internet at 2 AM when I can't sleep. At least I'm only into this project $20 so far. It'd only be $10 if I bought one of each, but I've learned my lesson on breaking stuff before…

                              📷 @obsidianspider

                              mooseprM 1 Reply Last reply Reply Quote 0
                              • mooseprM
                                moosepr @obsidianspider
                                last edited by

                                @obsidianspider well I was already a few weeks into my latest project when this one popped up.

                                I couldn't find the ili9163 driver when I was testing the other night, but the screen seems OK with the st7735 driver (apart from it trying to do 128x160 resolution)

                                want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                                obsidianspiderO 1 Reply Last reply Reply Quote 0
                                • obsidianspiderO
                                  obsidianspider @moosepr
                                  last edited by obsidianspider

                                  @moosepr Since it looks like you've already got some experience with that particular ILI9163 display would you be willing to share how you attached directly to the ribbon cable? The PCB has a resistor, capacitor, and something else that I can't quite identify, so I'm not sure what they're doing.

                                  📷 @obsidianspider

                                  1 Reply Last reply Reply Quote 0
                                  • obsidianspiderO
                                    obsidianspider @moosepr
                                    last edited by

                                    @moosepr said in RetroPie in a Dreamcast VMU!:

                                    already a few weeks into my latest project

                                    I saw the teaser photos on Twitter. Now I'm curious what else you're up to. Your skill in making PCBs is something I would love to learn.

                                    📷 @obsidianspider

                                    mooseprM 1 Reply Last reply Reply Quote 0
                                    • mooseprM
                                      moosepr
                                      last edited by

                                      Sure! You will need a 10ohm resistor to tame the backlight, and other than that, wire it straight to the pi!

                                      The boards have a 3v regulator. I can't find an exact data sheet for the screen I have, but most indicate that the screen is OK with 3.3v

                                      Here is the schematic for the little red board

                                      alt text

                                      Credits to https://www.google.co.uk/amp/s/chioszrobots.com/2014/08/30/1-44-red-serial-128x128-spi-color-tft-lcd-module-display-screen/amp/

                                      want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                                      obsidianspiderO 1 Reply Last reply Reply Quote 1
                                      • mooseprM
                                        moosepr @obsidianspider
                                        last edited by

                                        @obsidianspider said in RetroPie in a Dreamcast VMU!:

                                        @moosepr said in RetroPie in a Dreamcast VMU!:

                                        already a few weeks into my latest project

                                        I saw the teaser photos on Twitter. Now I'm curious what else you're up to. Your skill in making PCBs is something I would love to learn.

                                        Making the boards isn't that difficult really, the hardest part is getting the schematic electrically correct

                                        want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                                        1 Reply Last reply Reply Quote 1
                                        • obsidianspiderO
                                          obsidianspider @moosepr
                                          last edited by

                                          @moosepr A resistor I can handle. We'll see if I can solder on the ribbon cable without messing it up. I knew there was a reason I bought two. ;)

                                          📷 @obsidianspider

                                          mooseprM 1 Reply Last reply Reply Quote 0
                                          • mooseprM
                                            moosepr @obsidianspider
                                            last edited by

                                            @obsidianspider just be gentle with the heat and you will be fine. Tin the wire, flux the ribbon, and it will soon stick

                                            want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                                            1 Reply Last reply Reply Quote 1
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