<commit_before># UART Loopback

This sample demonstrates basic data read and write operations over a UART.
The application creates a loopback interface that immediately echoes
any data read from the receive (RX) buffer to the transmit (TX) buffer.

## Screenshots

![UART Loopback sample demo][demo-gif]

[(Watch the demo on YouTube)][demo-yt]

## Pre-requisites

- Android Things compatible board with an available UART port
- Android Studio 2.2+
- [FTDI TTL-232R](http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm)
or compatible USB-TTL converter

## Schematics
<commit_msg>Update README with turndown notice.<commit_after># UART Loopback

This sample demonstrates basic data read and write operations over a UART.
The application creates a loopback interface that immediately echoes
any data read from the receive (RX) buffer to the transmit (TX) buffer.

> **Note:** The Android Things Console will be turned down for non-commercial
> use on January 5, 2022. For more details, see the
> [FAQ page](https://developer.android.com/things/faq).

## Screenshots

![UART Loopback sample demo][demo-gif]

[(Watch the demo on YouTube)][demo-yt]

## Pre-requisites

- Android Things compatible board with an available UART port
- Android Studio 2.2+
- [FTDI TTL-232R](http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm)
or compatible USB-TTL converter

## Schematics

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