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| ADB power switch for testing? |
Posted by: EvieSigma on 2017-04-06 08:21:17
Has anyone ever made a switch that plugs into the ADB port and imitates a keyboard power button for testing systems that require a keyboard to turn on?
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Posted by: Themk on 2017-04-06 08:40:57
I did, once... Wasn't all that useful as almost all ADB keyboards have power buttons on them.
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Posted by: EvieSigma on 2017-04-06 09:20:46
Well this would be for if you don't have a keyboard handy...
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Posted by: Themk on 2017-04-06 09:55:58
Yeah that is true, but I am swimming in ADB keyboards, soooo...... Anyway, it isn't all that difficult to build. Take a donor S-Video cable, cut one of the ends off, and solder a switch to the wires that correspond with the pins in the connector on the mac end.
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Posted by: EvieSigma on 2017-04-06 10:00:08
So there's pinout diagrams out there? Okay.
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Posted by: Themk on 2017-04-06 10:23:06
Yup. This page should give you all the info you need on the pinout:
http://pinouts.ru/Slots/apple_adb_pinout.shtml
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Posted by: Trash80toHP_Mini on 2017-04-06 11:41:38
Momentary switch.
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Posted by: EvieSigma on 2017-04-06 13:49:52
Okay, looking at that diagram, do I only need the 5V and ground lines?
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Posted by: Themk on 2017-04-06 14:03:14
As jt pointed out use a momentary switch.
Short pin 2 (the power switch pin) to ground, If I remember correctly.
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