dummy-parenting

An Android app which, when triggered by an AWS IoT button, records the last few minutes of audio and keeps recording for a specified length of time.

What you need

Log into your PubNub account and create a new "App".
Click on your new app and save the "Demo Keyset" keys, which you will need to publish and subscribe to events.

Log into the AWS Management Console.
Search for "Lambda," which is Amazon's serverless service. This will allow us to connect our IoT buttons with code that we wrote.
Create a new function, selecting "Author from scratch," and the latest version of Node.js.
Pay close attention to the AWS region you've selected, as you will need to know it to connect the button to the function.
Go into the project folder, and zip up the contents of the "lambda" folder
Go back to your Lambda function and find the "Function code" section. In the dropdown menu called "Code entry type," select "Upload a .zip file," and upload the file you've just zipped.
Now, find the "Environment variables" section and set PUBLISH_KEY to your PubNub publish key, and SUBSCRIBE_KEY to your PubNub subscribe key.

Download the AWS IoT app on your mobile device (iOS/Android) and open it.
Setup the button on your Wi-Fi, ensuring you have selected the correct AWS region, and when it asks what you'd like to trigger when the button is pressed, select the Lambda function you just created.

Open the Android project in Android Studio.
Open the default_prefs.xml file and replace the pubnub_subscribe_key value with your PubNub subscribe key.
Compile it (Build/Build APKs).
Move the APK to your Android phone and install it.

The app is now ready to be used.

Open the app on your Android phone and grant it all the permissions it requests;
Go into the settings and click "Setup triggers." This will allow you to link IoT buttons with your phone.
Add a trigger by typing in the serial number of your IoT button.
Now, go back into settings and enable "Background audio recording."
If you'd like to only enable the recording within specific time ranges, turn on the "Scheduled recording" option in the settings and add new time slots by pressing the "Customise schedule" button.

Congratulations, you're now ready to record some audio!

If the user has not set up any triggers in the app, it will automatically subscribe to a default channel for debugging purposes. This can be disabled/enabled by changing the debug_subscribe_default_enabled value in the default_prefs.xml file. The name of this channel can be modified by changing the debug_subscribe_default_channel_name value in the same file.