Set pwm values on the controlled pins.

        :param raw_values: Raw values to set (0-4095).

def _set_pwm(self, raw_values):
        """
        Set pwm values on the controlled pins.

        :param raw_values: Raw values to set (0-4095).
        """
        for i in range(len(self._pins)):
            self._device.set_pwm(self._pins[i], 0, raw_values[i])