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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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