mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
96 lines
2.2 KiB
Python
96 lines
2.2 KiB
Python
from RPi import GPIO
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from time import sleep
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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=1, off_time=1):
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self._stop_blink()
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self._blink_thread = GPIOThread(
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target=self._blink_led, args=(on_time, off_time)
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)
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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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class Robot(object):
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def __init__(self, left=None, right=None):
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if not all([left, right]):
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raise GPIODeviceError('left and right pins must be provided')
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self._left = Motor(left)
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self._right = Motor(right)
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def left(self, seconds=None):
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self._left.on()
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if seconds is not None:
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sleep(seconds)
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self._left.off()
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def right(self, seconds=None):
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self._right.on()
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if seconds is not None:
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sleep(seconds)
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self._right.off()
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def forwards(self, seconds=None):
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self.left()
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self.right()
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if seconds is not None:
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sleep(seconds)
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self.stop()
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def stop(self):
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self._left.off()
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self._right.off()
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