Slowly getting there. It seems the 'led.close()' call finds its way to here -
https://github.com/gpiozero/gpiozero/blob/master/gpiozero/pins/lgpio.py#L129That doesn't so much release the pin as merely turn it into an input. To actually release the pin it appears we need to change that to -And that seems to work, the LED line is repeatedly claimed, set, and released, in the main loop, however, when Ctrl-C aborted 'gpiozero' appears to try and release that pin which is already released and consequently errors.
At least I now know it is possible to get 'gpiozero' to relinquish a pin without exiting the program, so onwards and upwards.
https://github.com/gpiozero/gpiozero/blob/master/gpiozero/pins/lgpio.py#L129
Code:
def close(self): if self.factory._handle is not None: # Closing is really just "resetting" the function of the pin; # we let the factory close deal with actually freeing stuff lgpio.gpio_claim_input( self.factory._handle, self._number, lgpio.SET_PULL_NONE)Code:
def close(self): if self.factory._handle is not None: lgpio.gpio_free(self.factory._handle, self._number)At least I now know it is possible to get 'gpiozero' to relinquish a pin without exiting the program, so onwards and upwards.
Statistics: Posted by hippy — Sun Jan 07, 2024 9:25 am