Deep sleep max time

  • Hi,

    I´m using a Sipy 1.0 with a deep sleep shield and the expansion board v2.1.
    It is power supplied by usb.
    I have to put it in deep sleep mode for many hours, but when I tested it with only two hours (deepsleep.go_to_sleep(7200)) it wake up whenever it wants, normally 51 minutes before. There is a limit of seconds in the go_to_sleep(seconds) function?
    If I put the Sipy on deep sleep and then I want to wake it up on interrupt pin, do I have the same limitation of seconds?
    I have tested it with battery supply too. In this case it wake up at 30 minutes, 11 minutes, 6 minutes...
    I will appreciate any help with this.

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