GPIO button


3 posts
by limecore » Sat Nov 03, 2012 11:16 pm
For my next pi project, I want to make an alarm clock. For this alarm clock, I want to add a big red button as a snooze button, similar to this
http://au.element14.com/apem/1415nc-red ... dp/1082276
or this
http://au.element14.com/multicomp/mcpas ... dp/1638334

Will these buttons work with the pi GPIO pins, or is the voltage too high
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by mahjongg » Sun Nov 04, 2012 12:21 am
Switches do not have "a voltage", they either connect two metal parts together, or they don't.

What you describe is the voltage between the contacts that can be comfortable put between the metal contacts, without the switch sparking over, or burning out if you close the switch.


In short, these switches are perfectly useable with the PI's GPIO's, that they can also be used as a light-switch doesn't matter in the least. You can use them the same as with any tiny switch or pushbutton, or for that matter, a switch or pushbutton you make yourself with a block of wood two brass push-pins and a paperclip. Just don't use your paperclip switch for a light-switch thats all. :mrgreen:
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by limecore » Sun Nov 04, 2012 12:31 am
Thanks
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