brillo-samples/driver/mma7660fc: add schematics and README

Bug: 32410763
Change-Id: Ifa96fb17c692d9ead9640098bc540cad6a969908

mma7660fc/README.md

@@ -0,0 +1,56 @@
+Accelerometer sample for Android Things
+============================================
+
+This Android Things sample demonstrates how to use a Grove Accelerometer MMA7660FC sensor.
+
+Pre-requisites
+--------------
+
+- Android Things compatible board
+- Android Studio 2.2+
+- 1 [Grove Accelerometer MMA7660FC](http://wiki.seeed.cc/Grove-3-Axis_Digital_Accelerometer-1.5g/)
+- jumper wires
+- 1 breadboard
+
+
+Schematics
+----------
+
+![Schematics for Intel Edison](edison_schematics.png)
+![Schematics for Raspberry Pi 3](rpi3_schematics.png)
+
+
+Build and install
+=================
+
+On Android Studio, click on the "Run" button.
+
+If you prefer to run on the command line, type
+
+```bash
+./gradlew installDebug
+adb shell am start com.example.androidthings.driversamples/.AccelerometerDemo
+```
+
+If you have everything set up correctly, the segment display will show "ABCD".
+
+
+License
+-------
+
+Copyright 2016 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.