class WDT – watchdog timer

The WDT is used to restart the system when the application crashes and ends up into a non recoverable state. Once started it cannot be stopped or reconfigured in any way. After enabling, the application must “kick” the watchdog periodically to prevent it from expiring and resetting the system.

Example usage:

wdt = pyb.WDT(5000) # enable with a timeout of 5s


class pyb.WDT([timeout])

Create a WDT object. If the timeout is specified the WDT is started. The timeout must be given in seconds and 1s the minimum value that is accepted. Once it is running the timeout cannot be changed and the WDT cannot be stopped either.



Kick the WDT to prevent it from resetting the system. The application should place this call in a sensible place ensuring that the WDT is only kicked after verifying that everything is functioning correctly.