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HAPP Analog pedals to A-pac from ultimarc
AndyWarne:
--- Quote from: Mysterioii on May 30, 2012, 09:08:01 am ---So Andy, the pins on the board labelled 1DOWN, 1LEFT, 2DOWN and 2LEFT are really +5V supplies and 1UP, 1RIGHT, 2UP and 2RIGHT are sense lines correct? I had seen a thread that used that image a few weeks ago and the labels confused me, since I do understand how pots work.
Just a little more discussion for anyone who might be interested, but when you connect one fixed leg of a pot to ground and the other to some voltage, then measure the voltage at the wiping arm, it's essentially a variable voltage divider. Adjust it fully one way and you'll hit the ground rail, adjust it fully the other way and you'll hit whatever your input voltage is, and at any other point along the way it'll be some voltage in between as Andy says. Which is why it confuses me a little when people say "make sure you're using a replacement pot with the exact same resistance"... It really shouldn't matter all that much so long as there's no additional load resistance between the supply and the high rail of the pot and you don't pick one with such a low resistance that your supply can't handle the current required to drop the specified voltage across it. In general if you connect a 5V supply to one side of a 1K pot or a 10K pot or a 1M pot and the other side to ground, then if the wiper arm is perfectly centered all three will read 2.5V at the wiper.
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Thats all correct.
The A-PAC operates in the way you describe if it detects that pots are connected, at power up. If it does not detect pots, the directional inputs become switch inputs, so closing attached switches will cause the analog pointer to move right across in the direction of the input.
mytymaus007:
--- Quote from: PL1 on May 30, 2012, 12:19:48 am ---
--- Quote from: mytymaus007 on May 29, 2012, 11:53:52 pm ---Thanks for all your tech support I should of save the whole weekend by just buying a multimter before I posted. It turned out to be a bad POT. Who new figured it wasnt because it was brand new! Some new things are dfective from factory thank to HAPP their sending a new POT! GO HAPP!
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So it was just a bad pot, or was having a discontinued version of the board part of it?
Scott
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it was a bad pot, im waiting for HAPP to send me a new pot so i can hook everything up
mytymaus007:
--- Quote from: PL1 on May 25, 2012, 06:54:35 pm ---
From Ultimarc's A-Pac page.
Details and FAQ on link. Hope this helps.
Scott
Edit: If you wire it like the diagram above and it's working backward, swap wires 1 and 3. (power and ground, I believe) This should fix it without editing every game's configuration, since it will swap one end of the whole resistor for the other.
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Ok here's the update put in the new pot from happ and followed the a-PAC diagram and bamm easy as that well actually since its a pedal I used the up and down instead of left right terminal otherwise works great