def write(self, pin, value):
"""Write bool value to a pin.
Args:
pin (int): the pin to write to
value (bool): boolean value to write to pin
"""
with self._gpio_lock:
gpio_pin = GPIO(pin, "preserve")
if value:
gpio_pin.direction = "high"
else:
gpio_pin.direction = "low"
gpio_pin.close()
self.logger.debug("Wrote value to GPIO pin {}: {}".format(
pin, value))
def interrupt(self, callback, pin, interrupt_trigger=None, timeout=0):
"""Init interrupt callback function for pin.
Args:
callback (function): function to call on interrupt
pin (int): the pin to monitor for interrupts
"""
with self._gpio_lock:
gpio_pin = GPIO(pin, "preserve")
if gpio_pin.supports_interrupts:
gpio_pin.direction = "in"
gpio_pin.edge = interrupt_trigger
if gpio_pin.poll(timeout):
# Enter callback function
pass
gpio_pin.edge = "none" #need to set to none inorder to reuse pin for anything else
else:
self.logger.error(
"GPIO pin {} does not support interrupts".format(pin))
self.logger.debug(
"Set interrupt callback of GPIO pin {}".format(pin))