mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-12-08 20:39:01 +00:00
Update docstrings and add initial set of documentation
This commit is contained in:
Ben Nuttall
@@ -7,7 +7,7 @@ from time import sleep
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class LEDBoard(object):
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"""
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A Generic LED Board or collecfion of LEDs.
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A Generic LED Board or collection of LEDs.
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"""
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def __init__(self, leds):
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self._leds = tuple(LED(led) for led in leds)
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@@ -38,38 +38,27 @@ class LEDBoard(object):
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for led in self._leds:
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led.toggle()
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def blink(self, on_time=1, off_time=1):
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def blink(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Make all the LEDs turn on and off repeatedly in the background.
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Make all the LEDs turn on and off repeatedly.
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on_time: 1
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Number of seconds to be on
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off_time: 1
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Number of seconds to be off
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n: None
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Number of times to blink; None means forever
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background: True
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If True, start a background thread to continue blinking and return
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immediately. If False, only return when the blink is finished
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(warning: the default value of n will result in this method never
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returning).
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"""
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for led in self._leds:
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led.blink(on_time, off_time)
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def flash(self, on_time=1, off_time=1, n=1):
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"""
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Turn all the LEDs on and off a given number of times.
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on_time: 1
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Number of seconds on
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off_time: 1
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Number of seconds off
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n: 1
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Number of iterations
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"""
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for i in range(n):
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self.on()
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sleep(on_time)
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self.off()
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if i+1 < n: # don't sleep on final iteration
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sleep(off_time)
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led.blink(on_time, off_time, n, background)
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class PiLiter(LEDBoard):
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@@ -116,7 +105,7 @@ class PiTraffic(TrafficLights):
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class FishDish(TrafficLights):
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"""
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Pi Supply FishDish: horizontal traffic light LEDs, a button and a buzzer.
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Pi Supply FishDish: traffic light LEDs, a button and a buzzer.
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"""
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def __init__(self):
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red, amber, green = (9, 22, 4)
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@@ -151,6 +140,28 @@ class FishDish(TrafficLights):
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for thing in self._all:
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thing.toggle()
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def blink(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Make all the board's components turn on and off repeatedly.
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on_time: 1
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Number of seconds to be on
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off_time: 1
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Number of seconds to be off
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n: None
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Number of times to blink; None means forever
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background: True
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If True, start a background thread to continue blinking and return
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immediately. If False, only return when the blink is finished
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(warning: the default value of n will result in this method never
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returning).
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"""
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for thing in self._all:
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led.blink(on_time, off_time, n, background)
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def lights_on(self):
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"""
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Turn all the board's LEDs on.
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@@ -170,30 +181,31 @@ class FishDish(TrafficLights):
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"""
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super(FishDish, self).toggle()
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def flash_lights(self, on_time=1, off_time=1, n=1):
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def blink_lights(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Turn all the LEDs on and off a given number of times.
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Make all the board's LEDs turn on and off repeatedly.
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on_time: 1
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Number of seconds on
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Number of seconds to be on
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off_time: 1
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Number of seconds off
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Number of seconds to be off
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n: 1
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Number of iterations
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n: None
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Number of times to blink; None means forever
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background: True
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If True, start a background thread to continue blinking and return
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immediately. If False, only return when the blink is finished
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(warning: the default value of n will result in this method never
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returning).
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"""
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for i in range(n):
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[led.on() for led in self.leds]
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sleep(on_time)
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[led.off() for led in self.leds]
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if i+1 < n: # don't sleep on final iteration
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sleep(off_time)
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super(FishDish, self).blink(on_time, off_time, n, background)
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class TrafficHat(FishDish):
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"""
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Ryanteck Traffic HAT: horizontal traffic light LEDs, a button and a buzzer.
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Ryanteck Traffic HAT: traffic light LEDs, a button and a buzzer.
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"""
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def __init__(self):
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red, amber, green = (22, 23, 24)
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@@ -14,7 +14,8 @@ from .devices import GPIODeviceError, GPIODevice, GPIOQueue
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def _alias(key):
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return property(
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lambda self: getattr(self, key),
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lambda self, val: setattr(self, key, val))
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lambda self, val: setattr(self, key, val)
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)
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class InputDeviceError(GPIODeviceError):
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@@ -28,12 +29,12 @@ class InputDevice(GPIODevice):
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def __init__(self, pin=None, pull_up=False):
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super(InputDevice, self).__init__(pin)
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self._pull_up = pull_up
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self._active_edge = (GPIO.RISING, GPIO.FALLING)[pull_up]
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self._inactive_edge = (GPIO.FALLING, GPIO.RISING)[pull_up]
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if pull_up:
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self._active_state = GPIO.LOW
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self._inactive_state = GPIO.HIGH
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GPIO.setup(pin, GPIO.IN, (GPIO.PUD_DOWN, GPIO.PUD_UP)[pull_up])
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self._active_edge = GPIO.FALLING if pull_up else GPIO.RISING
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self._inactive_edge = GPIO.RISING if pull_up else GPIO.FALLING
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self._active_state = GPIO.LOW if pull_up else GPIO.HIGH
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self._inactive_state = GPIO.HIGH if pull_up else GPIO.LOW
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pull = GPIO.PUD_UP if pull_up else GPIO.PUD_DOWN
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GPIO.setup(pin, GPIO.IN, pull)
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@property
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def pull_up(self):
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@@ -46,7 +47,7 @@ class InputDevice(GPIODevice):
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class WaitableInputDevice(InputDevice):
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"""
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A time-dependent Generic Input Device.
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An action-dependent Generic Input Device.
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"""
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def __init__(self, pin=None, pull_up=False):
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super(WaitableInputDevice, self).__init__(pin, pull_up)
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@@ -216,6 +217,8 @@ class Button(DigitalInputDevice):
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def __init__(self, pin=None, pull_up=True, bouncetime=None):
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super(Button, self).__init__(pin, pull_up, bouncetime)
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is_pressed = alias('is_active')
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when_pressed = _alias('when_activated')
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when_released = _alias('when_deactivated')
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@@ -34,7 +34,7 @@ class OutputDevice(GPIODevice):
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class DigitalOutputDevice(OutputDevice):
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"""
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Generic Digital GPIO Output Device (on/off/blink/toggle/flash).
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Generic Digital GPIO Output Device (on/off/toggle/blink).
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"""
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def __init__(self, pin=None):
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super(DigitalOutputDevice, self).__init__(pin)
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@@ -55,9 +55,20 @@ class DigitalOutputDevice(OutputDevice):
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self._stop_blink()
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super(DigitalOutputDevice, self).off()
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def toggle(self):
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"""
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Reverse the state of the device.
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If it's on, turn it off; if it's off, turn it on.
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"""
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with self._lock:
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if self.is_active:
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self.off()
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else:
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self.on()
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def blink(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Make the device turn on and off repeatedly in the background.
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Make the device turn on and off repeatedly.
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on_time: 1
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Number of seconds on
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@@ -83,17 +94,6 @@ class DigitalOutputDevice(OutputDevice):
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self._blink_thread.join()
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self._blink_thread = None
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def toggle(self):
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"""
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Reverse the state of the device.
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If it's on, turn it off; if it's off, turn it on.
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"""
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with self._lock:
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if self.is_active:
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self.off()
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else:
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self.on()
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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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@@ -114,104 +114,21 @@ class LED(DigitalOutputDevice):
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"""
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An LED (Light Emmitting Diode) component.
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"""
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def on(self):
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"""
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Turn the LED on.
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"""
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super(LED, self).on()
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def off(self):
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"""
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Turn the LED off.
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"""
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super(LED, self).off()
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def blink(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Make the LED turn on and off repeatedly in the background.
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on_time: 1
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Number of seconds on
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off_time: 1
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Number of seconds off
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n: None
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Number of times to blink; None means forever
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background: True
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If True, start a background thread to continue blinking and return
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immediately. If False, only return when the blink is finished
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(warning: the default value of n will result in this method never
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returning).
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"""
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super(LED, self).blink(on_time, off_time, n, background)
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def toggle(self):
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"""
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Reverse the state of the LED.
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If it's on, turn it off; if it's off, turn it on.
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"""
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super(LED, self).toggle()
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pass
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class Buzzer(DigitalOutputDevice):
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"""
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A Buzzer component.
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A digital Buzzer component.
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"""
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def on(self):
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"""
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Turn the Buzzer on.
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"""
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super(Buzzer, self).on()
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def off(self):
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"""
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Turn the Buzzer off.
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"""
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super(Buzzer, self).off()
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def blink(self, on_time=1, off_time=1, n=None, background=True):
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"""
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Make the Buzzer turn on and off repeatedly in the background.
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on_time: 1
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Number of seconds on
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off_time: 1
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Number of seconds off
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n: None
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Number of times to blink; None means forever
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background: True
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If True, start a background thread to continue blinking and return
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immediately. If False, only return when the blink is finished
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(warning: the default value of n will result in this method never
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returning).
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"""
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super(Buzzer, self).blink(on_time, off_time, n, background)
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def toggle(self):
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"""
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Reverse the state of the Buzzer.
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If it's on, turn it off; if it's off, turn it on.
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"""
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super(Buzzer, self).toggle()
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pass
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class Motor(OutputDevice):
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def on(self):
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"""
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Turns the Motor on.
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"""
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super(Motor, self).toggle()
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def off(self):
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"""
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Turns the Motor off.
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"""
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super(Motor, self).toggle()
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"""
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Generic single-direction motor.
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"""
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pass
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class Robot(object):
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