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| Single Slot Coin Door dilemna |
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| codemonkey76:
--- Quote from: Slippyblade on December 03, 2013, 02:09:17 am ---You would need to be using a 4 player encoder or have your keyboard/gamepad hack ready. These diagrams assume a common ground. With this setup if you dropped a coin without having a button down NOTHING will happen. --- End quote --- I have an i-pac4 --- Quote from: PL1 on December 03, 2013, 03:33:07 am ---The way the original post was phrased, it didn't sound like he was planning on having four coin buttons on the CP. :dunno If there are buttons for Coin 1 thru Coin 4 on the CP why the :censored: would someone bother with a circuit like this instead of just wiring Coin 1-4 to the associated encoder inputs and wire the coin slot in parallel with the (most often used) Coin 1 button? :dizzy: Another option that makes sense is to wire Coin 1 thru Coin 4 buttons to the encoder and wire the coin switch to all 4 encoder inputs using one diode per input (band toward the coin switch) so one coin drop gives you Coin 1 + Coin 2 + Coin 3 + Coin 4. YMMV. Scott --- End quote --- correct, i am not having any coin buttons on the CP, i was planning on just pressing (and holding) button 1 for each respective player when inserting a coin, not player x start button, can I do the proposed method using button 1, rather than player X start? can I have it so that just inserting a coin without pressing a button would result in a credit for player 1? |
| Binkles:
The way I would do it is buy one of those dial type switches, wire the wire that would normally go back to the 1 credit spot on the ipac to the middle pin of the dial, then wire the four positions on the dial to credits 1 to 4 on the ipac. Leave the switch in position 1 for normal credit, twist the dial to positions 2 to 4 depending on which player enters the coin otherwise. |
| PL1:
--- Quote from: codemonkey76 on December 03, 2013, 07:30:04 am ---i am not having any coin buttons on the CP, i was planning on just pressing (and holding) button 1 for each respective player when inserting a coin, not player x start button, can I do the proposed method using button 1, rather than player X start? can I have it so that just inserting a coin without pressing a button would result in a credit for player 1? --- End quote --- The one downside to the Button 1 approach is that some games use B1 as the start button. Check the control panels for the games on your play list -- no dedicated start button usually means B1 doubles as Start. :dunno If you're going to the time, effort, and expense of making a 4-player panel and don't intend to include coin buttons on the CP, I recommend getting a 4-slot coin door (Divemaster127 has them at arcadeemulator.net) or making the equivalent using CDRs from GGG or rectangular buttons from Divemaster with inserts that you print yourself. Scott |
| BadMouth:
Why not just map the controls in MAME to require one of the start buttons to be held down when a coin is inserted. Map P1 coin to: P1 start button+coin switch Map P2 coin to: P2 start button+coin switch etc. Only issue is that if they don't hold down a start button, then don't get a credit. Not a big deal since this isn't for commercial use. Personally I'd just have the coin door for looks and add a coin button next to the start button. |
| JDFan:
OR just drill a hole in the door to mount a 4 way selector switch (like Pictured below) and wire it so that it credits the selected player number when a coin is inserted. |
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