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Newbie I-PAC VE questions
jcroach:
Tiger-Heli and Grasshopper
Thanks for the help!
Grasshopper:
Yes, if the Ipac VE doesn't have a +5v connector, you can take +5v from the USB connector.
LEDs only require a miniscule amount of power so there shouldn't be any problems. If there was an issue then USB keyboards wouldn't have LEDs.
Tiger-Heli:
--- Quote from: jcroach on January 03, 2005, 02:17:00 pm ---I'll also have to draw +5v of power from somewhere. Do you recommend using the USB port power? I'd read that some people are cautious of this.
Then I can wire everything up as shown on the Ultimarc page, right?:
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Right, and the first screw terminal on each side nearest the keyboard port should be +5V, judging by the pic on the www.ultimarc.com website.
Kobex:
I have an I-PAC VE and have successfully hooked up LEDs to flash my player 1 and player 2 start buttons. The input assignments are as follows:
Num lock = 2P-D
Caps lock = 1P-D
Scroll lock = 1P-A (I think, this one always lit the LED)
I didn't use the scroll lock LED for anything, so I use this for player 1's button #7 as you normally would. I actually like these assignments, as the two LEDs I was interested in are hooked up to the D inputs.
I wanted to use superbright LEDs, so the +5 on the I-PAC didn't have enough juice. I followed the guide here to drive them with an external 5 Volts taken from my computer's power supply:
http://www.oscarcontrols.com/led/index.shtml
You can use the same control board for the VE, just remember that the inputs are different.
I used superbrights because I was sticking these LEDs inside happs buttons. I saw the idea here:
http://www.arcadeparadise.org/arcade/ap3/lighting.html
If you're using standard LEDs, then the +5 on the VE works fine. I tested them to make sure. If that accomplishes your goal, then it greatly simplifies the process!
And last but not least, make sure the "led_mode" setting in your mame.ini is set to "usb" instead of "ps/2" or it won't work.
jcroach:
--- Quote from: Kobex on January 04, 2005, 02:54:35 am ---I have an I-PAC VE and have successfully hooked up LEDs to flash my player 1 and player 2 start buttons.
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