From b33627051a75d061ce4d93adaea20ff842d55663 Mon Sep 17 00:00:00 2001 From: Jardi Martinez <1088732+jardiamj@users.noreply.github.com> Date: Tue, 10 Dec 2019 23:56:41 -0800 Subject: [PATCH] Provide link to How to enable i2c on HassOS instructions. (#11425) * Provide link to How to enable i2c on HassOS instructions. * :pencil2: Tweak Co-authored-by: Franck Nijhof --- source/_integrations/mcp23017.markdown | 2 ++ 1 file changed, 2 insertions(+) diff --git a/source/_integrations/mcp23017.markdown b/source/_integrations/mcp23017.markdown index 4991a3c7d67..35a241040bb 100644 --- a/source/_integrations/mcp23017.markdown +++ b/source/_integrations/mcp23017.markdown @@ -14,6 +14,8 @@ The `mcp23017` integration is the base for all related mcp23017 platforms in Hom 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). +If you are using Hass.io on HassOS you can’t use existing methods to enable the I2C bus on a Raspberry Pi, you will have to [enable the I2C interface in the Hass.io configuration](https://github.com/home-assistant/hassos/blob/dev/Documentation/boards/raspberrypi.md#i2c) using a USB stick. To accomplish that, follow this step by step instructions: [Enable HassOS i2c](https://www.home-assistant.io/hassio/enable_i2c). + ## 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).