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SpinTrak Spinner pinout?
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big10p:
Hi
I have a USB SpinTrak spinner and would like to tap 5v from the unused pins on the tiny PCB to power a 5V button LED. Is this possible or a bad idea? I'm not using any mouse button inputs, so all the pins in this pic are 'free':
I read 5V across COM and all other pins. Does anyone know what the top two, unlabeled pins are, and/or can tell me which 2 pins I can safely connect to for the button LED, without registering a mouse button press?
Thanks in advance.
kiwasabi:
OK so there are 9 pins correct? Looking straight at it with the board facing upwards, with the 5 pins on bottom, 4 pins on top, and the missing pin on the upper left... The 2 pins on the right (top and bottom pins) are 5V.
The wiring pinout is:
Brown 5V
White GND
Yellow X1
Green X2
So with that info in mind...you should be able to connect safely to the pin above/below where the reddish/brownish wire is connected. The mouse buttons should be the two pins above/below where the yellow and green wires are connected.
big10p:
Thanks for the reply. I emailed Andy at Ultimarc and he's says the only 5v pin is the one with the brown wire, and that it should be OK to power a LED from that. Seems a bit strange though as I read 5v across other pins too, but it's probably best to be on the safe side and just tap into the brown one.
PL1:
--- Quote from: big10p on July 25, 2014, 05:47:26 am ---Thanks for the reply. I emailed Andy at Ultimarc and he's says the only 5v pin is the one with the brown wire, and that it should be OK to power a LED from that. Seems a bit strange though as I read 5v across other pins too, but it's probably best to be on the safe side and just tap into the brown one.
--- End quote ---
You will read 5v on any encoder input, assuming it is an active-low device like the IPac, KeyWiz, KADE, etc.
Those inputs aren't designed to provide the current required to properly drive an LED.
A quick test on a KADE with a 12v LED revealed:
* Connecting the LED between 5v and ground caused the LED to light brightly :)
* Connecting the LED between an input and ground triggered the associated output and caused the LED to light very dimly (~10% as bright?)
Scott
big10p:
--- Quote from: PL1 on July 25, 2014, 05:08:52 pm ---
--- Quote from: big10p on July 25, 2014, 05:47:26 am ---Thanks for the reply. I emailed Andy at Ultimarc and he's says the only 5v pin is the one with the brown wire, and that it should be OK to power a LED from that. Seems a bit strange though as I read 5v across other pins too, but it's probably best to be on the safe side and just tap into the brown one.
--- End quote ---
You will read 5v on any encoder input, assuming it is an active-low device like the IPac, KeyWiz, KADE, etc.
Those inputs aren't designed to provide the current required to properly drive an LED.
A quick test on a KADE with a 12v LED revealed:
* Connecting the LED between 5v and ground caused the LED to light brightly :)
* Connecting the LED between an input and ground triggered the associated output and caused the LED to light very dimly (~10% as bright?)
Scott
--- End quote ---
I see. The brown 5v wire it is, then. Thanks, Scott. ;)
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