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USB Device with long internal wires won't work in one locati

by GlenJ / June 16, 2008 6:44 AM PDT

This is a bit of a toughie.

My friend likes playing Stepmania, a dance mat game. We've rigged up a 8 player version (using 8 USB mats). It works nice at my house, my office and another person's house. No problems whatsoever.

However, when we set it up at my friend's house sometimes it works sometimes it doesn't. We have tried different computers (all XP SP2), different USB dance mats, different hubs.

I have now tried a UPS and grounded one of the dance mats internally.

(AS you can see, I'm thinking it must be environmental. The UPS was to rule out the power supply and the internal ground was to stop the mats internal wiring acting like an aerial.)

I am now hoping it's a driver problem. The dance mats are picked up by windows internal game controllers sometimes, but won't acknowledge that a buton has been pressed. Sometimes it won't detect a device plugged in and sometimes it worls fine. The timings seem completely random.

This is driving me nuts.....any help much apprciated

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Collapse -
Is it inside the spec?
by R. Proffitt Forum moderator / June 16, 2008 9:43 AM PDT
Collapse -
Check and verify
by Willy / June 16, 2008 11:46 PM PDT

I take it you're using the same actual "mat package" from one location to another?????

If so, then yeah, maybe environmental, but are the systems really the same? Even if all XP SP2, doesn't mean the systems can't vary. The USB ports should all be USB 2.0 and possible the same system port(that mat was originally installed under). Next, that the household wiring is truly grounded and wired right, use a simple 3-prong tester found at Radio Smack or electrical section of Lowe's, etc.. Outside interference like EMI/EMF emissions can wreak havoc at they can ride the wiring and cause system errors/problems. After all, the USB port is powered under minor voltage and amps. As much as that sounds trivial, you've basically done the possible checks but the USB specs at the website Robert provide do come into play once reached or exceeded and "quality" does matter. Cheapie componets vary outcomes and your results are telling. Please provide a website or full game details from that maker/vendor to review the requirements, etc..

tada -----Willy Happy

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