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Yet another Coinslot plea

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Jukecade:
Hi
I know this has probably been asked before but am struggling to find the answer i can understand.

I want to wire a Coin slot like the china ones you see on e-bay etc which has a 9/12v pulse to a hacked joypad ("select button') so when a coin is inserted the pulse is like pressing the select on the joypad. I know i have to do something with a relay but I believe the ampage coming from the coinslot is not enough to trigger a standard relay. I guess you can use a ?transisters but I cant understand how a a transister with 3 legs can trigger a separate  lower powered circuit. I think a transister needs 5+volts where I guess a joypad uses 1-3.5volts.

Please help

Thanks you

PL1:
First question: Is your gamepad an active-low or active-high device?

Most encoders are active-low (connect ground to the input to trigger the output), but the ZD encoders are active-high.  (connect 5v to the input to trigger the output)

Measure the voltage on a daisy-chained trace (common to more than one button) -- ground = active-low, 5v = active-high

If your gamepad is an active-high device, check out this thread.

If your gamepad is an active-low device, wire it up like this with 12v to the recognizer and coin signal/ground connected to your gamepad.



The reverse-biased zener diode is there to regulate the 12v from the coin recognizer down to 5v -- use a zener diode rated for the voltage that your gamepad uses.

You may need to adjust the sensitivity or program the recognizer depending on the model you are using.   :dunno


Scott

Jukecade:
Thank you for this reply. I'll see what the voltage is and see if I can work it out. I'm pretty scared of blowing up my pc trying to figure this out. :-\

paigeoliver:

--- Quote from: Jukecade on June 19, 2014, 02:30:11 am ---Hi
I know this has probably been asked before but am struggling to find the answer i can understand.

I want to wire a Coin slot like the china ones you see on e-bay etc which has a 9/12v pulse to a hacked joypad ("select button') so when a coin is inserted the pulse is like pressing the select on the joypad. I know i have to do something with a relay but I believe the ampage coming from the coinslot is not enough to trigger a standard relay. I guess you can use a ?transisters but I cant understand how a a transister with 3 legs can trigger a separate  lower powered circuit. I think a transister needs 5+volts where I guess a joypad uses 1-3.5volts.

Please help

Thanks you

--- End quote ---

Why not just use a mechanical one like this instead. No hook up worries at all.

http://www.ebay.com/itm/Coin-door-single-slot-for-Arcade-Jamma-Game-coin-selector-acceptor-validator-/251537685821

oldschoolgamer21:
Did you get this going jukecade.. If not I can help you wire up a transistor with a relay.. very simple to do..

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