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214 Stars 74 Forks Apache License 2.0 68 Commits 4 Opened issues


Sensor-based peripheral sample using Android Things

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Weather Station

This sample integrates multiple Android Things peripheral drivers together to build a connected Weather Station.

Note: The Android Things Console will be turned down for non-commercial use on January 5, 2022. For more details, see the FAQ page.


Weather Station sample demo

(Watch the demo on YouTube)



If you have the Raspberry Pi Rainbow Hat for Android Things, just plug it onto your Raspberry Pi 3.

Schematics for Raspberry Pi 3

Build and install

On Android Studio, click on the "Run" button. If you prefer to run on the command line, type

./gradlew installDebug
adb shell am start com.example.androidthings.weatherstation/.WeatherStationActivity

If you have everything set up correctly: - The segment display will show the current temperature. - If the button is pressed, the display will show the current pressure. - If a Piezo Buzzer is connected, it will plays a funny sound on startup. - If a APA102 RGB Led strip is connected, it will display a rainbow of 7 pixels indicating the current pressure. - If a Google Cloud Platform project is configured (see instruction below), it will publish the sensor data to Google Cloud PubSub.

Google Cloud Platform configuration (optional)

  1. Go to your project in the Google Cloud Platform console
  2. Under API Manager, enable the following APIs: Cloud Pub/Sub
  3. Under IAM & Admin, create a new Service Account, provision a new private key and save the generated json credentials.
  4. Under Pub/Sub: create a new topic and in the Permissions add the service account created in the previous step with the role Pub/Sub Publisher.
  5. Under Pub/Sub: create a new Pull subscription on your new topic.
  6. Import the project into Android Studio. Add a file named
    with the contents of the credentials you downloaded in the previous steps.
  7. In
    , replace the
    values with values from your project setup.

After running the sample, you can check that your data is ingested in Google Cloud Pub/Sub by running the following command:

gcloud --project  beta pubsub subscriptions pull 

Note: If there is no

file in
, the app will run offline and will not send sensor data to the Google Cloud Pub/Sub.

Next steps

Now your weather sensor data is continuously being published to Google Cloud Pub/Sub: - process weather data with Google Cloud Dataflow or Google Cloud Functions - persist weather data in Google Cloud Bigtable or BigQuery - create some weather visualization with Google Cloud Datalab - build weather prediction model with Google Cloud Machine Learning

Enable auto-launch behavior

This sample app is currently configured to launch only when deployed from your development machine. To enable the main activity to launch automatically on boot, add the following

to the app's manifest file:
    <action android:name="android.intent.action.MAIN"></action>
    <category android:name="android.intent.category.HOME"></category>
    <category android:name="android.intent.category.DEFAULT"></category>


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

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.

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