Kindle never shuts off.*1
All the microprocessor needs to do is detect activity on the slide switch. The act of sliding it wakes the micro, which begins measuring how long you hold the (spring-loaded, momentary-contact) switch.
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*1 The two Kindles I own never shut off .. with caveats.
Please see:
https://www.mobileread.com/forums/sho...d.php?t=113709
12-29-2010, 11:33 PM #1
thatsme
Bypassing the screensaver entirely on suspend
https://www.mobileread.com/forums/sho...01&postcount=8
08-05-2011, 01:00 PM #8
fbdev
how to tell when kindle sleeps/wakes up