esphome-docs/esphomeyaml/components/pca9685.rst

38 lines
1.2 KiB
ReStructuredText
Raw Normal View History

2018-05-13 11:37:02 +02:00
PCA9685 PWM Component
=====================
The PCA9685 component represents a PCA9685 12-bit PWM driver
(`datasheet <https://esp-idf.readthedocs.io/en/latest/api-reference/peripherals/ledc.html#configure-channel>`__,
`adafruit <https://www.adafruit.com/product/815>`__) in esphomelib. It
uses `I²C Bus </esphomeyaml/components/i2c.html>`__ for communication.
To use the channels of this components, you first need to setup the
global ``pca9685`` hub and give it an id, and then define the
`individual output channels </esphomeyaml/components/output/pca9685>`__.
.. code:: yaml
# Example configuration entry
pca9685:
- id: 'pca9685_hub1'
frequency: 500
# Individual outputs
output:
- platform: pca9685
id: 'pca9685_output1'
pca9685_id: 'pca9685_hub1'
channel: 0
Configuration variables:
~~~~~~~~~~~~~~~~~~~~~~~~
- **id** (**Required**,
`id </esphomeyaml/configuration-types.html#id>`__): The id to use for
this pca9685 component.
- **frequency** (**Required**, float): The frequency to let the
component drive all PWM outputs at. Must be in range from 24Hz to
1526Hz.
- **address** (*Optional*, int): The I²C address of the driver.
Defaults to ``0x00``.