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#3366327 - 08/13/11 08:39 PM Re: More inputs by matrixing BU0386X [Re: AndyB]  
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jimbop Offline
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Originally Posted By: AndyB
Hi Jimbop,

I wouldn't worry about the momentary switches, that's all I have in my cockpit. If they're biased centre off just label one side OFF and the other side ON. Then wire the switch connections to both sides of the switch. The switch then toggles the action. Harder to explain than do, honestly. If you want to try it, let me know and I'll draw up a wee diagram.

If the slider slots bother you, you can buy self adhesive decals that fit around the slot for audio mixing desks. Can't remember where I got them though.

Anyway, very nice piece of work. Keep up the good work.

Cheers,

AndyB


Thanks for the tip on the slider slots. The momentary switches are either SPDT or DPDT (I had some lying around but only use one pole for these connections). I use them, for instance, as one direction = flaps up and the other direction = flaps down but on/off is a good idea for many other systems, thanks.


Custom magnetic stick, control box and pedals | EVGA GTX480 superclock | i7 2600k @ 4.5 | GA-P67A-UD4-B3 | 8GB DDR3 1666 Corsair Vengeance | Antec 1200W TruePower | Windows 7 64-bit | FT clip + modded Logitech Fusion
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#3366331 - 08/13/11 08:45 PM Re: More inputs by matrixing BU0386X [Re: - Ice]  
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jimbop Offline
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Originally Posted By: - Ice
So, how many buttons/switches did you use up?


Ha, don't know but you can count them if you want! Remember that the switches are two inputs each. I know that there are about 75-100 inputs spare, though.

Worth noting that the ground for every single button and switch are shared. I just ran a thin tin-coated copper wire through all the grounds (soldered on) and then a single hookup to the card.


Custom magnetic stick, control box and pedals | EVGA GTX480 superclock | i7 2600k @ 4.5 | GA-P67A-UD4-B3 | 8GB DDR3 1666 Corsair Vengeance | Antec 1200W TruePower | Windows 7 64-bit | FT clip + modded Logitech Fusion
#3367323 - 08/15/11 12:05 PM Re: More inputs by matrixing BU0386X [Re: jimbop]  
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CyBerkut Offline
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[quote=jimbop
Worth noting that the ground for every single button and switch are shared. I just ran a thin tin-coated copper wire through all the grounds (soldered on) and then a single hookup to the card. [/quote]

Nice bit of engineering / creativity in getting so much more out of Leo's board!

The next time you're working under the hood on that, if you want to increase the reliability a bit, you could connect up the other end of the ground chain to the card as well. That way, a single break in the ground chain doesn't take out a bunch of your switches/controls. [and no, that's not what a ground loop is... biggrin ]

(You know it will happen at the worst possible time...)

#3367401 - 08/15/11 02:11 PM Re: More inputs by matrixing BU0386X [Re: jimbop]  
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jimbop Offline
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Good one, thanks for the tip. Can't believe I didn't think of it!


Custom magnetic stick, control box and pedals | EVGA GTX480 superclock | i7 2600k @ 4.5 | GA-P67A-UD4-B3 | 8GB DDR3 1666 Corsair Vengeance | Antec 1200W TruePower | Windows 7 64-bit | FT clip + modded Logitech Fusion
#3801968 - 06/26/13 10:03 PM Re: More inputs by matrixing BU0386X [Re: jimbop]  
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servet Offline
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This is an amazing and ingenious technique. And with the clean and polished circuitry, it does look a little like magic. 276 inputs being converted to 32 without any tangles of wires of huge wire looms. One questions though, right now, you’re using 2 inputs to formulate a combination, any chance we can use 3 or more inputs or will we need to use the regular input range extending ICs with that.

pcb assemblies

Last edited by servet; 06/26/14 09:04 PM.
#3802141 - 06/27/13 11:34 AM Re: More inputs by matrixing BU0386X [Re: jimbop]  
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Sorry if I sound stupid, but doesn't Windows' HID driver have a hard limit of 32 buttons per joystick? How are you able to utilize all the extra inputs?

#3802143 - 06/27/13 11:45 AM Re: More inputs by matrixing BU0386X [Re: recoilfx]  
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jimbop Offline
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Originally Posted By: recoilfx
Sorry if I sound stupid, but doesn't Windows' HID driver have a hard limit of 32 buttons per joystick? How are you able to utilize all the extra inputs?


Yes, the hard limit applies. This is merely a hack that trigger two inputs simultaneously by a single button or other input. Basically just joining wires between two normal inputs.

Your application needs to accept multiple input commands for this to work. I.e. Input 1 + input 15 = in game effect.

Regarding the question about triple input I don't see why this would be a problem theoretically as long as your application can accept more than two simultaneous inputs for a single command. But your circuits will be cumbersome to say the least!


Custom magnetic stick, control box and pedals | EVGA GTX480 superclock | i7 2600k @ 4.5 | GA-P67A-UD4-B3 | 8GB DDR3 1666 Corsair Vengeance | Antec 1200W TruePower | Windows 7 64-bit | FT clip + modded Logitech Fusion
#3967637 - 06/14/14 10:09 AM Re: More inputs by matrixing BU0386X [Re: jimbop]  
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E69_Jack_Aubrey Offline
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.... one question, why you dont use the 4 inputs from the 8 way "point of view" hat switch???

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