rgb.py

#!/usr/bin/python3

class RGB(object):

    def __init__(self,config,r=None,g=None,b=None):
        self.config=config
        self._white_balance = self.config.get("white_balance",[1,1,1])
        self._intensity = self.config.get("intensity",1)
        self.led_pins = self.config.get("led_pins",{"r":22,"g":27,"b":17})
        self._color = [0,0,0]

    def set(self):
        r=self.color[0] * self.white_balance[0] * self.intensity
        g=self.color[1] * self.white_balance[1] * self.intensity 
        b=self.color[2] * self.white_balance[2] * self.intensity 

        pwm = open('/dev/pi-blaster', 'w')
        pwm.write(str(self.led_pins["r"])+"="+str(r)+" ")
        pwm.write(str(self.led_pins["g"])+"="+str(g)+" ")
        pwm.write(str(self.led_pins["b"])+"="+str(b)+"\n")
        pwm.close()

    @property
    def color(self):
        return self._color

    @color.setter
    def color(self, value):
        self._color = value
        self.set()

    @property
    def intensity(self):
        return self._intensity

    @intensity.setter
    def intensity(self, value):
        self._intensity = value
        self.set()

    @property
    def white_balance(self):
        return self._white_balance

    @white_balance.setter
    def white_balance(self, value):
        self._white_balance = value
        self.set()