'Initialize the data object.'

def __init__(self, envirophat, use_leds):

    self.envirophat = envirophat
    self.use_leds = use_leds
    self.light = None
    self.light_red = None
    self.light_green = None
    self.light_blue = None
    self.accelerometer_x = None
    self.accelerometer_y = None
    self.accelerometer_z = None
    self.magnetometer_x = None
    self.magnetometer_y = None
    self.magnetometer_z = None
    self.temperature = None
    self.pressure = None
    self.voltage_0 = None
    self.voltage_1 = None
    self.voltage_2 = None
    self.voltage_3 = None
