Source code for rainbowhat.lights

try:
    import RPi.GPIO as GPIO
except ImportError:
    exit("This library requires the RPi.GPIO module\nInstall with: sudo pip install RPi.GPIO")


RED = 6
GREEN = 19
BLUE = 26

GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)

[docs]class Light: def __init__(self, gpio_pin): self._gpio_pin = gpio_pin self.state = False GPIO.setup(self._gpio_pin, GPIO.OUT, initial=GPIO.LOW)
[docs] def on(self): """Turn the light on.""" self.write(True)
[docs] def off(self): """Turn the light off.""" self.write(False)
[docs] def toggle(self): """Toggle the light.""" self.write(not self.state)
[docs] def write(self, value): """Write a value to the light. :param value: Either True or False to turn light on or off/ """ self.state = GPIO.HIGH if value else GPIO.LOW GPIO.output(self._gpio_pin, self.state)
class Lights: red = Light(RED) green = Light(GREEN) blue = Light(BLUE) _all = [red, green, blue] def __getitem__(self, key): return self._all[key] def all(self, value): """Set a value to all lights. :param value: Either True or False for on/off. """ self.red.write(value > 0) self.green.write(value > 0) self.blue.write(value > 0) def rgb(self, r, g, b): """Set the LEDs by colour. :param r: Either True or False to turn Red light on/off. :param g: Either True or False to turn Green light on/off. :param b: EIther True or False to turn Blue light on/off. """ self.red.write(r > 0) self.green.write(g > 0) self.blue.write(b > 0) Lights = Lights()