Check datetime of files?
I want to be able to reboot the lopy based on seeing a file version in the file directory? How do i do this?
You can get a list of files with uos.listdir(<dir>). If you tell the version by the modification data, uos.stat() tells you the file modification time, given that the clock was set appropriately, and machine.reset() can be called to reset the device.
If you do not have RTC supplied by a battery, you can set the time via ntp by:
from machine import RTC rtc=RTC() rtc.ntp_sync("pool.ntp.org")
Then, the file modification times are valid.
If you use another mechanism as version indicator, like the name of a file or the content of a file, you have to define and implement it yourself.