Autofire Circuit
- gargoyle67
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Re: Autofire Circuit
It's ok if the game has it built in, But if the game developers never intended the game to have autofire it's cheating, I never used autofire with consoles\arcade\computer games, What ever next slow mo is that cheating ? unlimited
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- emphatic
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Re: Autofire Circuit
I SAY!Devil Soundwave wrote:Emphatic's doo-hickey
My games: http://www.emphatic.se
- yosai
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Re: Autofire Circuit
Built a clone of emphatics passive autofire circuit and it works alright. RFJ has never been so easy.
The orange wires have spade connectors on the ends and attach in series to the required buttons (max 2)
The green wire connects to GND, and the black wire (not needed) is a longer GND wire.
Pot adjustment ranges from always on to around 30Hz.
Schematic also attached.
The orange wires have spade connectors on the ends and attach in series to the required buttons (max 2)
The green wire connects to GND, and the black wire (not needed) is a longer GND wire.
Pot adjustment ranges from always on to around 30Hz.
Schematic also attached.
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- markedkiller78
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Re: Autofire Circuit
Nice one Yosai, when do you put them into production
- FrancoB
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Re: Autofire Circuit
Nice one Yosai
Where did you get all of the parts from? I wouldn't mind having a go at wiring a couple up as I haven't done anything with breadboard(?) before.
- yosai
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Re: Autofire Circuit
The Veroboard came from Maplins as did the resistor and capacitors. The 74HC04 came from ebay. All in it cost just under £10. that is for 10 74HC04 a few capacitors and resistors and a sheet of Veroboard
I haven't really got the facilities to be doing stuff like this. I've got enough components to make three more, if I've got any free time on Monday I may make another.
I think Ross will be knocking something up over the weekend though.
I haven't really got the facilities to be doing stuff like this. I've got enough components to make three more, if I've got any free time on Monday I may make another.
I think Ross will be knocking something up over the weekend though.
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Re: Autofire Circuit
Someone needs to get proper little dedicated PCBs made up for these
- gargoyle67
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Re: Autofire Circuit
Your all cheaaaaaaattttttttttssssss
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- Devil Soundwave
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Re: Autofire Circuit
I'm on it - parts for 24 landing in 2 days or so.
Not sure I'll get on it this weekend though as I have to finish some old game -> Jamma stuff for Magic Knight, plus my best mate turns thirty.
Not prepared to make proper PCBs until I've tested it as I think we can probably improve this.
I'm thinking:
1) Variable rate per button (one potentiometer each)
2) Autofire for up to 3 buttons (standard jamma)
3) Installation between the board and the jamma harness rather than at the button end.
So essentiallly tripling the circuit and adding by-pass on each.
Yosai - that's the first circuit diagram I've seen in ages which used wavy lines for resistance - had me well confused!
Not sure I'll get on it this weekend though as I have to finish some old game -> Jamma stuff for Magic Knight, plus my best mate turns thirty.
Not prepared to make proper PCBs until I've tested it as I think we can probably improve this.
I'm thinking:
1) Variable rate per button (one potentiometer each)
2) Autofire for up to 3 buttons (standard jamma)
3) Installation between the board and the jamma harness rather than at the button end.
So essentiallly tripling the circuit and adding by-pass on each.
Yosai - that's the first circuit diagram I've seen in ages which used wavy lines for resistance - had me well confused!
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Re: Autofire Circuit
1 and 2 sounds like sound ideas, but 3 I don't know, it's pretty comfortable to just put these in action just by flipping open the panel and put it there. Getting down on your knees is cramp inducing. I should probably get some more exercise. On the other hand, these are pretty easy to "forget" inside a panel. Very annoying if you play Twin Hawk with autofire on button 1, then switch to a CAVE game, and then the laser's not working. So I guess that all 3 points are valid. Should ramp up the production cost a bit though.Devil Soundwave wrote:1) Variable rate per button (one potentiometer each)
2) Autofire for up to 3 buttons (standard jamma)
3) Installation between the board and the jamma harness rather than at the button end.
My games: http://www.emphatic.se
- FrancoB
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Re: Autofire Circuit
You may want to think about doing two versions as some people (me! ) may want a version like yosai's that they could use for hacked console controllers that are connected to the controls too.
I assume these would have to be connected to the controls end but a three button version would be nice.
I assume these would have to be connected to the controls end but a three button version would be nice.
- Devil Soundwave
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Re: Autofire Circuit
But there's the thing Emph, you are gonna be down there fitting a board anyway, so you just fit the autofire and change your dips/settings there and then.
BTW - if anyone is making one for themselves, you want Matrix Board. Vero board has copper strips on it.
BTW - if anyone is making one for themselves, you want Matrix Board. Vero board has copper strips on it.
- cools
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Re: Autofire Circuit
1) Not sure I can see where you're going with that. If anyone knows a game where different buttons need different autofire rates please speak up, I don't know of any. Dipswitches to enable/disable autofire per button is an idea though.Devil Soundwave wrote:1) Variable rate per button (one potentiometer each)
2) Autofire for up to 3 buttons (standard jamma)
3) Installation between the board and the jamma harness rather than at the button end.
2) Makes sense.
3) Certainly in the Pony there's not much room for PCB + harness once mounted. A CP install would be more suitable for one of those. Inline means you can use 5v though.
Just had a thought though - is there be any way of having rapid fire activated by holding down the button for say .5 seconds. So a tap is just a tap (e.g. for bomb/quick shot) but holding it down gives rapid shot? The only games I know of where you need to flip between rapid/single shot constantly have autofire built in automatically - these would need the autofire circuit I'm thinking of disabled, but it'd add in flipping between rapid/single shot to other games. Maybe, not sure where I'm going with that either - I'm thinking it'd be nice to not have to touch the PCB and be able to swap between games like Puzzle Bobble, and Raiden.
- yosai
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Re: Autofire Circuit
That's ExpressSCH it was the first freeware schematic maker I found on the net.Yosai - that's the first circuit diagram I've seen in ages which used wavy lines for resistance - had me well confused!
Not sure the bypass is needed. Adjusting the pot to min gives a continuous output. Maxing it gives >30Hz.So essentiallly tripling the circuit and adding by-pass on each.
The copper strips are the main reason for using Veroboard.Devil Soundwave wrote:BTW - if anyone is making one for themselves, you want Matrix Board. Vero board has copper strips on it.
- yosai
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Re: Autofire Circuit
Meant to add, when both buttons are depressed the autofire rate drops slightly. Not visible in game, only on the I/O test screen.Not prepared to make proper PCBs until I've tested it as I think we can probably improve this.
- Devil Soundwave
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Re: Autofire Circuit
The rate of fire available uponj repeated presses differs by game. Beiung able to microtune the autofire will allow for optimum rate of fire.cools wrote: 1) Not sure I can see where you're going with that. If anyone knows a game where different buttons need different autofire rates please speak up, I don't know of any. Dipswitches to enable/disable autofire per button is an idea though.
Noted. Does that JP one you have not fit well then? prettyy sure I can achieve a fairly dinky form-factor.cools wrote: 3) Certainly in the Pony there's not much room for PCB + harness once mounted. A CP install would be more suitable for one of those. Inline means you can use 5v though.
[/quote]Cools wrote: Just had a thought though - is there be any way of having rapid fire activated by holding down the button for say .5 seconds. So a tap is just a tap (e.g. for bomb/quick shot) but holding it down gives rapid shot? The only games I know of where you need to flip between rapid/single shot constantly have autofire built in automatically - these would need the autofire circuit I'm thinking of disabled, but it'd add in flipping between rapid/single shot to other games. Maybe, not sure where I'm going with that either - I'm thinking it'd be nice to not have to touch the PCB and be able to swap between games like Puzzle Bobble, and Raiden.
Possible, but it would require a programmed delay in a PIC. Not sure I can be arsed considering the limited gain. Do you really think this would add a great deal?
- markedkiller78
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Re: Autofire Circuit
I know a game that needs different speeds on different buttons
mushihimesama
I only really need the basic model, but also like the idea of having this on a fingerboard at the jamma end.
mushihimesama
I only really need the basic model, but also like the idea of having this on a fingerboard at the jamma end.
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Re: Autofire Circuit
I think this would be best be done on the CP, we could use double sided stick tape to hold it to the bottom of the CP, and then run short leads up to the actual buttons, and have switches right there to turn it on and off, letting it be more useful to people who switch often, or want to test things in-game. Plus, it'll save all our backs by making us bend over less. +5v is available at our CPs, we might as well use it.
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- emphatic
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Re: Autofire Circuit
markedkiller78 wrote:mushihimesama
I think that the on/off/ option would be optimal, so you don't have to disconnect them at all (less wear & tear).
Also after given this some thought, you should either make two versions, or one with SIX buttons, so both players can use one unit. Also make sure to have long enough wires (on my Japanese "original" the cords just about extends to use 1 unit for both players fire1 buttons).
My games: http://www.emphatic.se
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Re: Autofire Circuit
I don't want to derail this topic as I am also interested in having a cheap autofire circuit, but I came across the MGM-SS2 autofire board developed by sanwa. From the pics it seems it has 8 button autofire and 2 firing speeds, 15/s an 30/s.
Someone with electonic skills could try to build it or adapt it to our interests
Pics:
Someone with electonic skills could try to build it or adapt it to our interests
Pics: