mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-05 09:20:08 +01:00
88e315e0e4
* Many example yaml tidy-ups * Update components/sensor/hlw8012.rst --------- Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
154 lines
4.9 KiB
ReStructuredText
154 lines
4.9 KiB
ReStructuredText
MCP23Sxx I/O Expander
|
|
=====================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up MCP23S08, MCP23S16 or MCP23S17 digital port expander in ESPHome. This series features exactly the same API as the MCP230xx I/O Expander (I²C)
|
|
:image: mcp230xx.svg
|
|
|
|
The Microchip MCP23Sxx series of general purpose, parallel I/O expansion for SPI bus applications.
|
|
This series features exactly the same API as the MCP230xx I/O Expander (I²C).
|
|
|
|
**Supported Variants :**
|
|
|
|
- :ref:`mcp23S08-label`
|
|
- :ref:`mcp23S17-label`
|
|
|
|
.. _mcp23S08-label:
|
|
|
|
MCP23S08 Component
|
|
------------------
|
|
|
|
The MCP23S08 component (`datasheet <http://ww1.microchip.com/downloads/en/DeviceDoc/MCP23008-MCP23S08-Data-Sheet-20001919F.pdf>`__,
|
|
`Digi-Key <https://www.digikey.com/product-detail/en/microchip-technology/MCP23S08-E-P/MCP23S08-E-P-ND/735954>`__) has 8 GPIOs that can be configured independently.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
mcp23s08:
|
|
- id: 'mcp23s08_hub'
|
|
cs_pin: GPIOXX
|
|
deviceaddress: 0
|
|
|
|
# Individual outputs
|
|
switch:
|
|
- platform: gpio
|
|
name: "MCP23S08 Pin #0"
|
|
pin:
|
|
mcp23xxx: mcp23s08_hub
|
|
# Use pin number 0
|
|
number: 0
|
|
# One of INPUT, INPUT_PULLUP or OUTPUT
|
|
mode:
|
|
output: true
|
|
inverted: false
|
|
|
|
# Individual inputs
|
|
binary_sensor:
|
|
- platform: gpio
|
|
name: "MCP23S08 Pin #1"
|
|
pin:
|
|
mcp23xxx: mcp23s08_hub
|
|
# Use pin number 1
|
|
number: 1
|
|
# One of INPUT or INPUT_PULLUP
|
|
mode:
|
|
input: true
|
|
inverted: false
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **id** (**Required**, :ref:`config-id`): The id to use for this MCP23S08 component.
|
|
- **cs_pin** (**Required**, int): The SPI chip select pin to use
|
|
- **deviceaddress** (*Optional*, int): The address of the chip.
|
|
Defaults to ``0``.
|
|
- **open_drain_interrupt** (*Optional*, boolean): Configure interrupt pins to open-drain mode.
|
|
Useful when the MCP23S08's power supply is greater than 3.3 volts. Note that these pins
|
|
will require pull-up resistors (to 3.3 volts) when this mode is enabled.
|
|
|
|
Pin Configuration Variables:
|
|
****************************
|
|
|
|
- **mcp23xxx** (**Required**, :ref:`config-id`): The id of the MCP23S08 component.
|
|
- **interrupt** (*Optional*): Set this pin to trigger the INT pin on the component. Can be one of ``CHANGE``, ``RISING``, ``FALLING``.
|
|
- All other options from :ref:`Pin Schema <config-pin_schema>`
|
|
|
|
|
|
.. _mcp23S17-label:
|
|
|
|
MCP23S17 Component
|
|
------------------
|
|
|
|
The MCP23S17 component allows you to use MCP23S17 I/O expanders
|
|
(`datasheet <http://ww1.microchip.com/downloads/en/DeviceDoc/20001952C.pdf>`__,
|
|
`Digi-Key <https://www.digikey.com/product-detail/en/microchip-technology/MCP23S17-E-SP/MCP23S17-E-SP-ND/894276>`__) in ESPHome.
|
|
It uses the :ref:`SPI Bus <spi>` for communication.
|
|
|
|
Once configured, you can use any of the 16 pins as
|
|
pins for your projects. Within ESPHome they emulate a real internal GPIO pin
|
|
and can therefore be used with many of ESPHome's components such as the GPIO
|
|
binary sensor or GPIO switch.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
mcp23s17:
|
|
- id: 'mcp23s17_hub'
|
|
cs_pin: GPIOXX
|
|
deviceaddress: 0
|
|
|
|
# Individual outputs
|
|
switch:
|
|
- platform: gpio
|
|
name: "MCP23S17 Pin #0"
|
|
pin:
|
|
mcp23xxx: mcp23s17_hub
|
|
# Use pin number 0
|
|
number: 0
|
|
mode:
|
|
output: true
|
|
inverted: false
|
|
|
|
# Individual inputs
|
|
binary_sensor:
|
|
- platform: gpio
|
|
name: "MCP23S17 Pin #1"
|
|
pin:
|
|
mcp23xxx: mcp23s17_hub
|
|
# Use pin number 1
|
|
number: 1
|
|
# One of INPUT or INPUT_PULLUP
|
|
mode:
|
|
input: true
|
|
pullup: true
|
|
inverted: false
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **id** (**Required**, :ref:`config-id`): The id to use for this MCP23S17 component.
|
|
- **cs_pin** (**Required**, int): The SPI chip select pin to use.
|
|
- **deviceaddress** (*Optional*, int): The address of the chip.
|
|
Defaults to ``0``.
|
|
- **open_drain_interrupt** (*Optional*, boolean): Configure interrupt pins to open-drain mode.
|
|
Useful when the MCP23S17's power supply is greater than 3.3 volts. Note that these pins
|
|
will require pull-up resistors (to 3.3 volts) when this mode is enabled.
|
|
|
|
Pin Configuration Variables:
|
|
****************************
|
|
|
|
- **mcp23xxx** (**Required**, :ref:`config-id`): The id of the MCP23S17 component.
|
|
- **interrupt** (*Optional*): Set this pin to trigger the port INT pin on the component. Can be one of ``CHANGE``, ``RISING``, ``FALLING``.
|
|
- All other options from :ref:`Pin Schema <config-pin_schema>`
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`spi`
|
|
- :doc:`switch/gpio`
|
|
- :doc:`binary_sensor/gpio`
|
|
- :apiref:`API Reference (MCP23S08) <mcp23S08/mcp23S08.h>`
|
|
- :apiref:`API Reference (MCP23S17) <mcp23S17/mcp23S17.h>`
|
|
- :ghedit:`Edit`
|