COIN mapping ideas?

[misterrocks]

I'm using the MAYFLASH F300 Elite arcade stick and it has a USB port so I'm wondering if anyone has come up with a way to add some kind of a coin button or even a real coin mech that way? I don't think any of the other buttons are right for COIN.

[misterrocks]

Now that I think about it, you'd want to connect the extra COIN button/mech to USB on the MiSTer, not USB on the controller.

[misterrocks]

This would be fun:

https://www.amazon.com/gp/product/B09CLBDYSS/

[homerghost]

Really funny you should post this, I've got the F300 elite and I've recently Macgyvered (or perhaps, Mickgyvered) exactly such a setup.

I've put a Pro Micro inside the F300 and wired it up to work as a Daemonbite Arcade controller. There's a usb breakout on the Pro Micro that hijacks the regular usb cable of the F300.

The Select pin and Ground on the Pro Micro are then wired up to the female USB.

Then I have a cheap generic Coin Acceptor with a male USB cable that is wired up to deliver the COIN line and Ground into the Pro Micro, via that female USB port on the F300.

I'm very happy with this solution! In principle it should work still the same with the stock PCB if you solder it to the "Select" pins on the board and sacrifice the functionality of the female USB but don't quote me on that.

[homerghost]

Now that I think about it, you'd want to connect the extra COIN button/mech to USB on the MiSTer, not USB on the controller.

In addition to my other reply, as far as I'm aware it isn't currently possible to use two devices as the same player input, which forced my hand in adding the functionality to the stick itself rather than the mister (which would be much better - perhaps someone else has a workaround)

It should be possible to wire up the coin acceptor as "Player 2" for the sole purpose of adding credits but although my solution is a little convoluted, file under "if it's dumb and it works it's not dumb"

[misterrocks]

Wow! I'd love to see photos if you get a chance.

You mentioned a "cheap generic Coin Acceptor with a male USB cable". That coin acceptor comes with USB output? If so which one do you have?

[homerghost]

I'll get some photos together when I can, absolutely!

It's just a standard cheapo coin acceptor (JY-100F) with the usual 12v, ground, coin and counter wires.

12v and Ground go to their own external power supply.

Coin and ground are DIY soldered to a USB cable with the sole purpose of using two of the USB pins to connect coin and ground to the Pro Micro. It has no USB functionality of its own - very much the same philosophy as SNAC, not real USB, just borrowing the connector to form a circuit.

I also have a 3.3v zener diode between coin and ground to regulate the current

[Drexl]

I don't know if it would fit that stick, but I was considering one of these: https://www.amazon.com/Atomic-Market-Cr ... 07XXCX889/ Although I have the Hori Rap N, which has a good height to it, and sides that go straight down rather than angled like the Mayflash.

[misterrocks]

Nice idea. You would replace one of the existing buttons on the controller? Need to solder it internally?