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Author Topic: Keyboard encoder on a USB hub?  (Read 464 times)

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Maxforwardspeed

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Keyboard encoder on a USB hub?
« on: May 25, 2022, 10:17:17 am »
Looking to use a USB hub for my keyboard encoder and trackball so I can make some room for lightguns. I'm looking at an unpowered hub with a 900 mah combined limitation. Does anyone know the actual power draw on the encoder (ipac 4) and trackball? Or have a recommendation on a USB hub for this application? Thanks.

PL1

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Re: Keyboard encoder on a USB hub?
« Reply #1 on: May 25, 2022, 11:24:24 am »
Does anyone know the actual power draw on the encoder (ipac 4) and trackball?
Haven't measured the precise current draw of those two devices, but you'll have no problem powering them with any unpowered USB hub.   :cheers:
- Total current draw will be less than 200 mA, even with the four LEDs in the trackball optical circuits drawing 15-20 mA each.

I've been powering a Mini-Pac, UTrak, TT2 spinner, and a dozen or so low-current-draw button+trackball LEDs using an unpowered USB hub for over a decade.   ;D


Scott

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Re: Keyboard encoder on a USB hub?
« Reply #2 on: May 25, 2022, 12:18:15 pm »
Thanks Scott! I'll just pick up a cheap one in that case!