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How to Piggyback a Dreamcast Controller on a Universal PCB

Step 3Introducing your Dreamcast controller.

Introducing your Dreamcast controller.
The first picture shows the Agetec PCB exactly has I received it. A very big thanks to Urth who sold them to me and kept them in such great condition. The connectors that plug into the PCB are still in great condition and will make this job a whole lot easier.

These directions for using a Dreamcast controller will use this Agetec PCb as an example, but any Dreamcast controller will work. The Agetec is the perfect choice, based on size, mounting holes, and the easy to use connectors. In a pinch, any Dreamcast controller with six digital buttons will work fine. Official Dreamcast controllers and any other controller that doesn't have digital C and Z buttons on the face will not be covered here; take the time for find a controller with digital C and Z buttons.

Absolutely everything we need to connect to is available through those connector wires. If you're removing this PCB from a working Agetec stick, you should be able to identify all of the wires yourself, but I went ahead and wrote them all down for you.

The far left connector in the first picture is the buttons. From top (brown) to bottom (grey), the wires are:

1. X (Jab)
2. Y (Strong)
3. Z (Fierce)
4. C (Roundhouse)
5. B (Forward)
6. A (Short)
7. Start
8. Ground

Left connector on the bottom is the stick connector. From left (black) to right (yellow), the wires are:
1. Ground
2. Up (brown)
3. Right (red)
4. Down (orange)
5. Left (yellow)

The right connector on the bottom is the stick connector. From left (white) to right (red), the wires are:
1. DC_2 (white)
2. Sense (green)
3. Ground (black)
4. VCC (blue)
5. DC_1 (red)

The Sense line we'll take care of in the UPCB cable, so clip it off. We now have three different wires, one on each connector, labeled Ground. We only need one, so cut and ignore the other two. Now we have 7+4+4=15 wires. Since we can ignore the Select line on the ribbon cable, we have 15 wires on the Agetec, and 15 wires in the ribbon cable. Hook them up, and you're done.

It is just that easy. The button and direction lines go to the matching button and direction lines on the Agetec. The power line's connected to the power line, the ground line's connected to the ground line, and the DC_1 and DC_2 lines are connector to their two wires on the Agetec.

The button and direction connectors can have the wire trimmed anywhere you want, but you should leave about 3" or more so you have plenty of wire to work with. The Dreamcast cable should be cut about 3" from where it plugs into the Agetec board; that gives us three inches to connect to the ribbon cable, and almost all of the cord and plug. Set the cord and plug aside, we'll need it to make the UPCB cable.
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Author:Toodles