Upstream/esphome-docs
1
0
Fork 0
mirror of https://github.com/esphome/esphome-docs.git synced 2024-12-27 17:37:45 +01:00
Code Issues Projects Releases Wiki Activity

updated doc after idf changes for TCA9548A (#1559)

Browse Source 
Co-authored-by: Andreas Hergert <andreas.hergert@otrs.com>
This commit is contained in:
Andreas Hergert 2021-10-22 18:21:25 +02:00 committed by GitHub
parent c4fc5fcae0
commit 980fc2dd15
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
components/tca9548a.rst
View File

@ -10,6 +10,7 @@ The TCA9548A component allows you to use TCA9548A as a I²C multiplexer
`AdaFruit`_) in ESPHome. It uses :ref:`I²C Bus <i2c>` for communication. `AdaFruit`_) in ESPHome. It uses :ref:`I²C Bus <i2c>` for communication.
Once configured, you can use any of the 8 channels (TCA9548A) as separated channels for your projects. Once configured, you can use any of the 8 channels (TCA9548A) as separated channels for your projects.
Every Channel acts for all connected components as a virtual I²C Bus.
.. figure:: images/tca9548a.jpg .. figure:: images/tca9548a.jpg
@ -27,15 +28,16 @@ Once configured, you can use any of the 8 channels (TCA9548A) as separated chann
- address: 0x70 - address: 0x70
id: multiplex0 id: multiplex0
i2c_id: i2c0 i2c_id: i2c0
scan: true channels:
- bus_id: multiplex0channel0
channel: 0
- bus_id: multiplex0channel1
channel: 1
# Individual I2C Devices # Individual I2C Devices
sensor: sensor:
- platform: bmp280 - platform: bmp280
multiplexer: i2c_id: multiplex0channel1
id: multiplex0
channel: 0
...
Configuration variables: Configuration variables:
~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
@ -44,8 +46,11 @@ Configuration variables:
- **address** (*Optional*, int): The I²C address of the Multiplexer. - **address** (*Optional*, int): The I²C address of the Multiplexer.
Defaults to ``0x70``. Defaults to ``0x70``.
- **i2c_id** (*Optional*): The I²C Bus ID - **i2c_id** (*Optional*): The I²C Bus ID
- **scan** (*Optional*, bool): if the channel should be scanned
Defaults to ``false`` Defaults to ``false``
- **channels** (*Optional*): The I²C Bus Channels
- **bus_id** (**Required**, :ref:`config-id`): The id to use for this virtual I2C Bus.
- **channel** (**Required**): The channel (0-7) to use for this virtual I2C Bus.
See Also See Also
-------- --------