detect PWMChannel, PWMOut, or Pin

Author: brentru

adafruit_rgbled.py

@@ -108,6 +108,12 @@ def __init__(self, red_pin, green_pin, blue_pin, invert_pwm=False):
             pin_type = str(type(self._rgb_led_pins[i]))
             if pin_type == "<class 'Pin'>":
                 self._rgb_led_pins[i] = PWMOut(self._rgb_led_pins[i])
+                self._rgb_led_pins[i].duty_cycle = 0
+            elif pin_type == "<class 'PWMChannel'>" or pin_type == "<class 'PWMOut'>":
+                # PWMChannel/PWMOut do not require extra setup
+                self._rgb_led_pins[i].duty_cycle = 0
+            else:
+                raise TypeError('Must provide a pin, PWMOut, or PWMChannel.')
         self._invert_pwm = invert_pwm
         self._current_color = (0, 0, 0)
         self.color = self._current_color