Merge branch 'pr/101'

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	source/components/index.markdown

source/_components/sensor.rpi_gpio.markdown

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+---
+layout: page
+title: "Raspberry PI GPIO sensor support"
+description: "Instructions how to integrate the GPIO sensor capability of a Raspberry PI into Home Assistant."
+date: 2015-08-30 19:00
+sidebar: false
+comments: false
+sharing: true
+footer: true
+logo: raspberry-pi.png
+ha_category: Sensor
+---
+
+<img src='/images/supported_brands/raspberry-pi.png' class='brand pull-right' />
+The rpi_gpio sensor platform allows you to read sensor values of the GPIOs of your [Raspberry Pi](https://www.raspberrypi.org/).
+
+To use your Raspberry Pi's GPIO in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  platform: rpi_gpio
+  ports:
+    11: PIR Office
+    12: PIR Bedroom
+  pull_mode: "UP"
+  value_high: "Active"
+  value_low: "Inactive"
+```
+
+Configuration variables:
+
+- **ports** array (*Required*): Array of used ports.
+  - **port: name** (*Required*): Your username for the Edimax switch.
+- **pull_mode** (*Optional*): The internal pull to use (UP or DOWN). Default is UP.
+- **value_high** (*Optional*): The value of the sensor when the port is HIGH. Default is "HIGH".
+- **value_low** (*Optional*): The value of the sensor when the port is LOW. Default is "LOW".
+- **bouncetime** (*Optional*): The time in milliseconds for port debouncing. Default is 50ms.
+
+For more details about the GPIO layout, visit the Wikipedia [article](https://en.wikipedia.org/wiki/Raspberry_Pi#GPIO_connector) about the Raspberry Pi.
+
+<p class='note warning'>
+If you are not running Raspbian Jessie, you will need to run Home Assistant as root.
+</p>
+
+<p class='note warning'>
+To avoid having to run Home Assistant as root when using this component, run a Raspbian version released at or after September 29, 2015.
+</p>