Posts tagged "Homemade Hardware"

Contains all my attempts at making my own computer hardware.

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Make Your Own ColecoVision At Home (Part 4 - Quadrature Controllers)

We got conventional ColecoVision “hand” controllers working well in the last entry. I’ve never used any of the ColecoVision’s more exotic controllers before; will they work properly on my clone machine, even though I didn’t really understand them?

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Make Your Own ColecoVision At Home (Part 3 - Joystick Fix)

In the last entry, I was left with a working ColecoVision-compatible board, albeit one with a very stuttery controller that would only work when connected to what I thought was the second controller port. Let’s fix that, and then enjoy the cheapo ColecoVision games that I spent all this effort building this thing for in the first place.

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Do you want to come for a ride in my Jaaaaaaaag?

One of the most unloved machines in my hoard collection is the Atari Jaguar. It’s not because I don’t have good games for it, or because it’s not working. No, it’s because the Jaguar came used with only the RF adapter, and I hated setting it up with a TV. After testing it out, and collecting a few games for it, it ended up getting boxed away for a move about a decade ago and hasn’t come out since. And that’s a crying shame.

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Revenge of the Famicom composite video mod

When we last read about the Famicom composite mod, there were a bunch of changes I wanted to make, but left tragically undone in the name of getting in some Mario time over the holidays. Now I’m going to make a solid effort at producing a more production-ready version of the modification.

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All A-Keyboard for the Sharp X1turbo

Even though the X1turbo is working again, it’s not enormously useful right now. Sure, the boot screen is pretty, but there’s so much more to the entire experience. In order to take another step along the road to it becoming a functional computer, I’ll build a keyboard adapter.

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The X1turbo can see again

Now that the Sharp X1turbo has been convinced to start up again, it’s time to get some video out of it by constructing a cable so it can talk to a more modern monitor. Yeah, that’s right. No ugly dongle PCB this time!

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Adding composite video to a Famicom

Since I’ve been reading I Am Error, I’ve been getting more and more interested in the technical aspects of the Famicom. Turns out all you really need to get me interested in your console is prose explanations of how a pattern table works. Also, I get to drip some molten lead into it so I can use a modern TV! Everyone wins.

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Let's visit Portopia

In order to get to the bottom of a mystery, I had to put a lot of other mysteries in my way first. And then also build some hardware. At the end of this entry, I’ll have actually used old hardware to play a videogame. I’m scared too.

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Make Your Own ColecoVision At Home (Part 2 - Assembly)

The boards for the homemade ColecoVision clone project have arrived. It’s been a long haul of finger-burning fun to get the console assembled, but will it ever be able to play a cartridge?

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Make Your Own ColecoVision At Home (Part 1 - Design)

When I found some cheap ColecoVision cartridges in the junk bin at the flea market, I knew I had to save them from whatever fate awaited them after the junk bin. How would I play them? Today’s old-ColecoVision prices are ridiculous, so I started building one instead.

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Dual Goteks in the PC-8801mkIISR at last

In my previous entry, I found out that my old IBM PC “DOS” floppy adapter was not sufficient when trying to read from two drives at once. Somehow, they confused the floppy controller enough that nothing could be read from the second drive.

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Attempting dual Goteks in the PC-8801mkIISR

I got another couple of Gotek floppy emulators from China, and now the SR has dual floppy drives. Unfortunately, I can’t use them both at the same time.

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The last ride of PC88 colour video

After a respin of the PC88 colour video board, the PC8801mkII now has excellent digital colour video out.

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A mystical journey to PC8801mkII colour video

I’ve been using the monochrome video cable on my PC88 ever since I built it. Colour video was a little more complicated, so I ended up designing a bunch of adapters to try and get it to work. I’m happy to announce that one of those adapters has finally worked!

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PC98 - New floppy board, sound 'fixed,' more testing

Now that the PC98 can load a game off a flash drive, there’s a lot more parts of it I can test. Today, I spent a few minutes putting together a new revision of the floppy board and inspecting the computer.

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Floppy adapter board works for the PC98!

After I designed the first version of my PC88 floppy board, I thought it would be fun to put one together for the PC98 as well. Why do I need an adapter for a computer that already has 3.5” floppy drives? The PC9821AP2 I own has a 26-pin floppy drive connector, like a mid-90s laptop, and most standard IBM PC style floppy drives have 34.

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Revenge of the PC-8801mkII floppy adapter board

In the last entry, I found myself with a working adapter board to allow a 3.5” floppy drive (like a Gotek) to work with the NEC PC8801mkII. This liberated me from having to source, organize and maintain 5.25” floppy disks, and opens a large library of software for this computer without having to hunt through the used market. However, like all good things, there were a lot of bugs with the old adapter.

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PC-8801mkII floppy adapter board

I wanted to get a Gotek working on my PC88, and after seeing that there were a lot of Japanese hobbyists who had managed to get an HxC floppy emulator working, decided it must be possible - even if not simple.

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