Add a prerequisite (#16019)

Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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Federico Granata 2020-12-28 19:50:42 +01:00 committed by GitHub
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@ -13,6 +13,10 @@ ha_domain: rpi_gpio
The `rpi_gpio` integration is the base for all related GPIO platforms in Home Assistant. There is no setup needed for the integration itself, for the platforms please check their corresponding pages.
## Prerequisites
When you are running the Home Assistant Operating System, the 32-bits version of the OS is required in order to use this integration.
## Binary Sensor
The `rpi_gpio` binary sensor platform allows you to read sensor values of the GPIOs of your [Raspberry Pi](https://www.raspberrypi.org/).