OSH Park
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Ultra low power buffer
by
hexeguitar.
2
layer board of
1.43x1.29
inches
(36.22x32.72
mm).
Shared on
April 3rd, 2017 08:03.
Onboard discrete low power buffer for instruments.
Pot SPWM v3
by
Suyatox.
2
layer board of
0.73x0.64
inches
(18.42x16.15
mm).
Shared on
April 3rd, 2017 07:45.
JVS JAMMA I/O Adapter
by
Zarradeth.
2
layer board of
4.41x1.34
inches
(112.01x34.01
mm).
Shared on
April 3rd, 2017 06:49.
(v1.2)
An adapter board for hooking up joysticks to a JVS I/O Board that uses JAMMA, specifically designed with the Sega 838-13683-93 REV. B in mind. This board is not designed to power the I/O, the I/O should be receiving power from another source (such as the CN6 header on the REV B). This design also assumes that your I/O board will provide +5v/+12v on the JAMMA connector (but it will be mostly functional without it).
Buttons 1-5 are on the JAMMA edge, button 6 is connected up to the 14 pin connector which is meant to be hooked up to CN3 on the REV B. Technically only pins 4 (P1 Button 6) and 8 (P2 Button 6) need to be hooked up on the 14 pin connector. All pins besides those 2 on the connector are NC. So, again, the only pins you would need to wire are 4 and 8 (which aren’t even needed if you don’t care about 6 button support).
The board has plugs for a +5v and +12v monitor, they are not required. There is also a 2nd plug for a +5v out, intended for use with a modified USB cable to power a Pi. These outputs will only work if the board is receiving power from the I/O board over the JAMMA edge (which is the case if the REV B is powered via CN6). On the 2 pin connectors Pin 1 is output and Pin 2 is ground. Theoretically you could possibly use these plugs as power input (as they connect to the JAMMA edge) to power the I/O, but the board was not designed for this.
The two resistors are connected between +5v and the coin meter pins on the JAMMA edge to spoof the existence of coin meters for games that require it. This will not work if the board is not receiving +5v from the JAMMA edge. The push buttons on the board are provided for ease of access to test/service/coin inputs, they do not need to be populated.
The board was designed to fit the following parts:
- All plugs are 2.5mm pitch, designed for JST XH plugs.
- The DB-15 connectors were designed for Amphenol’s L717SDA15PA4CH4F
- The push buttons were designed for TE Connectivity’s ALCOSWITCH Switches (1825910-6)
- The JAMMA edge was designed for a Suzo Happ female edge connector (with solder terminals), but should fit pretty much any JAMMA female connector. (Note: This board was designed for soldering a female connector onto the board, not for a female-female connector, the pins on the JAMMA edge on this board might be a bit too short to use a female-female connector, but it might work. It will for sure not work if your connector requires a slot for the Key, as this board has a pin (unused) in its place).
The DB-15 plugs use the wiring that should be found on most Superguns: http://www.thesupergun.com/electrical/standard-supergun-controller-wiring-diagram/
In case the site cannot be reached the wiring is as follows:
- GND
- Button 6
- Coin
- Button 4
- Button 2
- Right
- Down
- +5v*
- NC
- Button 5
- Start
- Button 3
- Button 1
- Left
- Up
*As with the other outputs on the board, pin 8 will only be outputting +5v if this board is receiving power from the I/O board over JAMMA. The board will still function if it is not receiving power, but none of the outputs will work (whether or not your controller will work without the +5v on pin 8 depends on how it’s wired. Standard Neo Geo/Supergun controllers should function without it).
co2simple_r0
by
theatrus.
2
layer board of
2.51x2.01
inches
(63.75x51.05
mm).
Shared on
April 3rd, 2017 04:23.
CO2 Simple Doser Controller
RTDS-schematic.brd
by
C-Crowley.
2
layer board of
2.01x2.52
inches
(51.08x64.01
mm).
Shared on
April 2nd, 2017 23:26.