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  • 0

Lua command to check the last wake up time, it's possible?


Question

Posted

The topic title says it all, I need to check how long ago was the device awake, is that possible?

Thanks!

5 answers to this question

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  • 0
  • Inquirer
  • Posted

    I got it with the following code, I just don't understand why I have to subtract the value to os.time().

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    • 0
    Posted

    os.time() gives you the current time in seconds since 1.1.1970 (normal time measurement on unix/linux based systems). Also lastModified returns the seconds that have passed since 1.1.1970 until the last change of this device.

    So the difference of these two values is the value you are looking for.

    • 0
    Posted

    Technically, "lastModified" and "last wake up time" are not the same. A device can send an updated value, without being "awake". For example, a Light Sensor (Aeotec MultiSensor, Fibaro Motion Sensor) can send an update at regular intervals in the minute range, while being awake (only) in the hour range. The distinction is that a device accepts commands from the controller during wake up (for example: "set parameters"). When sending an an update, it doesn't accept anything. This is done to conserve battery.

    • 0
  • Inquirer
  • Posted

    And I can do something like this?

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    • 0
  • Inquirer
  • Posted

    I manage to do it with a while do

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