Teensy 3.1 + Capacitive Touch ? Power Consumption & Interrupts

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solardude

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Hey everybody!

I'm building a portable battery pack using the Teensy 3.1 as the brains behind the device and I think it makes perfect sense to use the built in cap touch feature for the battery packs user control interface.

Since this is going to be a battery based product I'm curious about how much power the cap touch pins consume?

I read in the Teensy 3.1 chips data sheet that the the Cap input pins are low power but I have no idea what that actually means.

I read that when the Teensy 3.1 is in a sleep state that only 1 of the 16 cap touch inputs can be used as a interrupt to awake from sleep. This is good because I want one of the cap touch pins to wake the Teensy 3.1 from sleep using Duff's new Snooze library if possible.

So I wonder if the pins used for CAP touch no longer consume power when the chip is put into sleep mode or not?

Any info on these subjects are more than welcome!

I'm going to use CAP touch buttons on a PCB where my 2.7 inch LCD screen is also mounted to.
 
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