mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
e2ddad6fea
The motion sensor queue doesn't shut down properly at script end at the moment and prevents the interpreter shutting down. This is because it's a non-daemon thread so `__del__` never gets run and so on. This is a bit of a major PR - I can split it up if you want. Firstly it makes a common base class called `GPIODevice` for both `InputDevice` and `OutputDevice`. This just takes care of the read-only pin stuff. Next it makes a `GPIOThread` class that ensures its a daemon thread, and which also ensures proper cleanup on shutdown. Finally, it fixes `MotionSensor` to use the new `GPIOThread` class (tested this time! Works nicely) and adds the `blink` method to the `LED` class (which also works nicely this time).
61 lines
1.4 KiB
Python
61 lines
1.4 KiB
Python
from RPi import GPIO
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from .devices import GPIODeviceError, GPIODevice, GPIOThread
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class OutputDeviceError(GPIODeviceError):
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pass
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class OutputDevice(GPIODevice):
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def __init__(self, pin=None):
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super(OutputDevice, self).__init__(pin)
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GPIO.setup(pin, GPIO.OUT)
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def on(self):
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GPIO.output(self.pin, True)
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def off(self):
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GPIO.output(self.pin, False)
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class LED(OutputDevice):
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def __init__(self, pin=None):
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super(LED, self).__init__(pin)
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self._blink_thread = None
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def blink(self, on_time, off_time):
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self._stop_blink()
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self._blink_thread = GPIOThread(target=self._blink_led, args=(on_time, off_time))
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self._blink_thread.start()
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def _stop_blink(self):
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if self._blink_thread:
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self._blink_thread.stop()
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self._blink_thread = None
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def _blink_led(self, on_time, off_time):
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while True:
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super(LED, self).on()
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if self._blink_thread.stopping.wait(on_time):
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break
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super(LED, self).off()
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if self._blink_thread.stopping.wait(off_time):
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break
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def on(self):
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self._stop_blink()
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super(LED, self).on()
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def off(self):
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self._stop_blink()
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super(LED, self).off()
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class Buzzer(OutputDevice):
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pass
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class Motor(OutputDevice):
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pass
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