50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
---
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layout: page
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title: "PWM LED"
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description: "Instructions on how to setup pwm leds within Home Assistant."
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date: 2017-04-04 13:00
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sidebar: true
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layout: page
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comments: false
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sharing: true
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footer: true
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ha_category: Light
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ha_iot_class: "Local Push"
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ha_release: 0.43
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---
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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.
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### {% linkable_title Configuration %}
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```yaml
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# Example configuration.yaml entry
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light:
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platform: rpi_gpio_pwm
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leds:
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# One-color led directly connected to GPIO
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- name: Lightstrip Cupboard
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driver: gpio
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pins: [17]
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type: simple
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# RGB led connected to PCA9685 controller
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- name: TV Backlight
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driver: pca9685
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pins: [0, 1, 2] # [R, G, B]
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type: rgb
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# RGBW led connected to PCA9685 controller
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- name: Lightstrip Desk
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driver: pca9685
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pins: [3, 4, 5, 6] # [R, G, B, W]
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type: rgbw
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```
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Configuration variables:
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- **leds** array (*Required*):
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- **name** (*Required*): The name of the led.
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- **driver** (*Required*): The driver, which controls the led. Choose either `gpio` or `pca9685`.
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- **pins** (*Required*): The pins connected to the led. The order of pins is determined by the specified type.
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- **type** (*Required*): The type of led. Choose either `rgb`, `rgbw` or `simple`.
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- **freq** (*Optional*): The PWM frequency. (Default: `200`)
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- **address** (*Optional*): The address of the PCA9685 driver. (Default: `0x40`)
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