home-assistant.io/source/_components/light.rpi_gpio_pwm.markdown

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layout	title	description	date	sidebar	layout	comments	sharing	footer	ha_category	ha_iot_class	ha_release
page	PWM LED	Instructions on how to setup pwm leds within Home Assistant.	2017-04-04 13:00	true	page	false	true	true	Light	Local Push	0.43

The rpi_gpio_pwm platform allows to control multiple lights using pulse-width modulation, for example led strips. It supports one-color, RGB and RGBW leds driven by GPIOs of an Raspberry Pi or a PCA9685 controller.

{% linkable_title Configuration %}

# Example configuration.yaml entry
light:
  platform: rpi_gpio_pwm
  leds:
    # One-color led directly connected to GPIO
    - name: Lightstrip Cupboard
      driver: gpio
      pins: [17]
      type: simple
    # RGB led connected to PCA9685 controller
    - name: TV Backlight
      driver: pca9685
      pins: [0, 1, 2] # [R, G, B]
      type: rgb
    # RGBW led connected to PCA9685 controller
    - name: Lightstrip Desk
      driver: pca9685
      pins: [3, 4, 5, 6] # [R, G, B, W]
      type: rgbw

Configuration variables:

• leds array (Required):
  • name (Required): The name of the led.
  • driver (Required): The driver, which controls the led. Choose either gpio or pca9685.
  • pins (Required): The pins connected to the led. The order of pins is determined by the specified type.
  • type (Required): The type of led. Choose either rgb, rgbw or simple.
  • freq (Optional): The PWM frequency. (Default: 200)
  • address (Optional): The address of the PCA9685 driver. (Default: 0x40)