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Updated documentation for mcp23017 component.

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Jardi A. Martinez Jordan 2019-05-25 18:18:59 -07:00
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source/_components/mcp23017.markdown
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@ -18,13 +18,15 @@ ha_iot_class: Local Polling
The `mcp23017` component is the base for all related mcp23017 platforms in Home Assistant. There is no setup needed for the component itself, for the platforms please check their corresponding sections.
For more details about the MCP23017 I2C I/O port expander you can find its datasheet here: [MCP23017](https://www.microchip.com/wwwproducts/en/MCP23017).
## {% linkable_title Binary Sensor %}
The `mcp23017` binary sensor platform allows you to read sensor values from the I/O pins of your [MCP23017 I2C I/O expander](https://www.adafruit.com/product/732).
The pin numbers are from 0 to 15 where: 0-7 correspond to port A (A1-A8) and 8-15 to port B (B1-B8).
## {% linkable_title Configuration %}
### {% linkable_title Configuration %}
To use the I/O pins of an mcp23017 connected to an I2C bus of your Raspberry Pi as binary sensors, add the following to your `configuration.yaml` file:
@ -74,15 +76,13 @@ pull_mode:
NOTE: MCP23017 only has internal pull-up resistors, if you want to use pull-down you will have to wire your own pull-down resistors.
For more details about the MCP23017 I2C I/O port expander you can find its datasheet here: [MCP23017](https://www.microchip.com/wwwproducts/en/MCP23017).
## {% linkable_title Switch %}
The `mcp23017` switch platform allows you to write to the I/O pins of your [MCP23017 I2C I/O expander](https://www.adafruit.com/product/732).
The pin numbers are from 0 to 15 where: 0-7 correspond to port A (A1-A8) and 8-15 to port B (B1-B8).
## {% linkable_title Configuration %}
### {% linkable_title Configuration %}
To use the I/O pins of an mcp23017 connected to an I2C bus of your Raspberry Pi as switches, add the following to your `configuration.yaml` file:
@ -117,5 +117,3 @@ invert_logic:
default: false
type: boolean
{% endconfiguration %}
For more details about the MCP23017 I2C I/O port expander you can find its datasheet here: [MCP23017](https://www.microchip.com/wwwproducts/en/MCP23017).