External Power Switch for BBB
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Please be positive and constructive with your questions and comments.
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External Power Switch for BBB
I'm looking at building an external enclosure for my BBB and I'd like to be able to safely shutdown and power off my BBB using an external switch. I don't see any examples of this being done before, does anyone have any ideas on how to go about this? Ideally I'd simply have an LED for power status and a momentary switch for shutdown, then a toggle switch for hard power on/off. Any ideas?
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- Posts: 3
- Joined: Mon Jan 06, 2014 8:59 am
Re: External Power Switch for BBB
the new official debian image for bbb includes a feature for safely starting and shutting down the bbb. http://beagleboard.org/latest-images
just press the power button (S3) to boot and again to begin the shutdown process. note that shutting down takes about 25sec.
a great thing is that this button (S3) is also available via pin P9_9. so simply connect your own button to that pin and ground it to boot/halt the system.
the indicator led you can connect to the 3v3 rail (P9_3) with a resistor to ground, and it'll show you if the bbb is on or not.
previously i did the same thing like this... https://github.com/redFrik/udk10-Embedd ... top-button
but it wasn't nearly as easy or flexible.
just press the power button (S3) to boot and again to begin the shutdown process. note that shutting down takes about 25sec.
a great thing is that this button (S3) is also available via pin P9_9. so simply connect your own button to that pin and ground it to boot/halt the system.
the indicator led you can connect to the 3v3 rail (P9_3) with a resistor to ground, and it'll show you if the bbb is on or not.
previously i did the same thing like this... https://github.com/redFrik/udk10-Embedd ... top-button
but it wasn't nearly as easy or flexible.
Please be positive and constructive with your questions and comments.