Building connected Product using Android Things

Presented at DevFest CZ , Prague Czech Republic.

In this presentation, Rebecca will look into using the Android Things platform as a way in which you can build connected products using Android. Rebecca will cover controlling your Android Things device with the Google Assistant. She will also talk through some different options for storing data for IoT devices. She will also showcase a few different applications of Android Things.

Transcript

1. Building a connected Product using Android Things Rebecca Franks Android Engineering Lead at DVT Google Developer Expert Android @riggaroo
2. riggaroo.co.za
3. Outline • Android Things • Google Assistant Integration • Storage Options • Examples
4. Android Things
5. Android Things is an extension of the Android platform for IoT and embedded devices.
6. Interactive Ads Vending Machines Point of Sale Stock Control Retail Cameras Gateways Access Control Smart Meters Business Asset Tracking Fleet Management Driver Assist Predictive Service Logistics Security Systems Smart Doorbells Routers Energy Monitors Home Android Things is ideal for powerful, intelligent devices that need to be secure.
7. Similarities Any other Android library... Android SDK Play Services Firebase Android Studio Cloud Platform
8. Differences No Play Store Deploy OTAs Subset of APIs Custom Hardware Single Purpose Device
9. Applications Launcher Phone Messaging Contacts Calendar Browser Settings Application Framework Activity Manager Window Manager Power Manager Resource Manager XMPP Service Content Providers Wallpapers System UI Package Manager Telephony Manager Location Manager Connectivity Manager View System Runtime Permissions Soft Keyboards Notifications Libraries Surface Manager Media Framework Chromium SSL HAL Audio Manager SQLite Open GL libc Core Libraries Android Runtime (ART) Android Runtime Linux Kernel Display Driver Camera Driver Bluetooth Driver Binder (IPC) Driver USB Driver Audio Driver WiFi Driver Power Management
10. Applications Launcher Phone Messaging Contacts Calendar Browser Settings Application Framework Activity Manager Window Manager Power Manager Resource Manager XMPP Service Content Providers Wallpapers System UI Package Manager Telephony Manager Location Manager Connectivity Manager View System Runtime Permissions Soft Keyboards Notifications Libraries Surface Manager Media Framework Chromium SSL HAL Audio Manager SQLite Open GL libc Core Libraries Android Runtime (ART) Android Runtime Linux Kernel Display Driver Camera Driver Bluetooth Driver Binder (IPC) Driver USB Driver Audio Driver WiFi Driver Power Management
11. Applications Launcher Phone Messaging Contacts Calendar Browser Settings Application Framework Activity Manager Window Manager Power Manager Resource Manager XMPP Service Wallpapers System UI Package Manager Telephony Manager Location Manager Connectivity Manager View System Soft Keyboards Notifications Libraries Surface Manager Media Framework Chromium SSL HAL Audio Manager SQLite Open GL libc Core Libraries Android Runtime (ART) Android Runtime Linux Kernel Display Driver Camera Driver Bluetooth Driver Binder (IPC) Driver USB Driver Audio Driver WiFi Driver Power Management Things Support Library Peripheral I/O Device Management User Drivers Connectivity
12. SoM Architecture Google Managed BSP
13. Distribution with Android Things Android Framework Hardware Libraries Linux Kernel Managed by Google Apps User Drivers Managed by Developers
14. Android Things Console • Manage your Android Things IoT Product • Download and install the latest Android Things system image • Build factory images that contain OEM applications along with the system image • Push over-the-air (OTA) updates partner.android.com/things/console
18. Automatic Security Updates Signed Images Verified Boot A/B Rollback Protection
19. Developing for Android Things
20. Developer Kits NXP I.MX7D Raspberry Pi 3
21. Hardware Integration Peripheral Driver Library - Github + many more... bit.ly/androidthings-github Button GPS PWM Servo RGB LED Strip Temperature Sensor Capacitive Touch Buttons Peripheral I/O - Low Level Access GPIO PWM I2C SPI UART I2S
22. Build a Motion Sensing Camera
23. Motion Sensing Camera
24. Pico i.MX7 Pinout
28. //Automatically added in app level build.gradle compileOnly 'com.google.android.things:androidthings:...'
29. //Automatically added in AndroidManifest.xml <application ...> <uses-library android:name="com.google.android.things"/> <activity ...> <!-- Launch activity automatically on boot --> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.IOT_LAUNCHER"/> <category android:name="android.intent.category.DEFAULT"/> </intent-filter> </activity> </application>
30. //Automatically added in AndroidManifest.xml <application ...> <uses-library android:name="com.google.android.things"/> <activity ...> <!-- Launch activity automatically on boot --> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.IOT_LAUNCHER"/> <category android:name="android.intent.category.DEFAULT"/> </intent-filter> </activity> </application>
31. Working with a Motion Sensor
32. GPIO - General Purpose Input / Output - Programmable way to read true / false values (1 or 0) (push button, PIR Sensor) - Write true/false values (LED) - Configurable
33. PIR Sensor
34. Motion Sensor Control
35. //Accessing Sensor Data private val motionSensorGpio: Gpio = PeripheralManagerService().openGpio(motionSensorPin) fun start() { motionSensorGpio.setDirection(Gpio.DIRECTION_IN) motionSensorGpio.setActiveType(Gpio.ACTIVE_HIGH) motionSensorGpio.setEdgeTriggerType(Gpio.EDGE_BOTH) motionSensorGpio.registerGpioCallback(object : GpioCallback() { override fun onGpioEdge(gpio: Gpio): Boolean { if (gpio.value) { motionListener.onMotionDetected() } else { motionListener.onMotionStopped() } return true } }) }
36. //Accessing Sensor Data private val motionSensorGpio: Gpio = PeripheralManagerService().openGpio(motionSensorPin) fun start() { motionSensorGpio.setDirection(Gpio.DIRECTION_IN) motionSensorGpio.setActiveType(Gpio.ACTIVE_HIGH) motionSensorGpio.setEdgeTriggerType(Gpio.EDGE_BOTH) motionSensorGpio.registerGpioCallback(object : GpioCallback() { override fun onGpioEdge(gpio: Gpio): Boolean { if (gpio.value) { motionListener.onMotionDetected() } else { motionListener.onMotionStopped() } return true } }) }
37. //Accessing Sensor Data private val motionSensorGpio: Gpio = PeripheralManagerService().openGpio(motionSensorPin) fun start() { motionSensorGpio.setDirection(Gpio.DIRECTION_IN) motionSensorGpio.setActiveType(Gpio.ACTIVE_HIGH) motionSensorGpio.setEdgeTriggerType(Gpio.EDGE_BOTH) motionSensorGpio.registerGpioCallback(object : GpioCallback() { override fun onGpioEdge(gpio: Gpio): Boolean { if (gpio.value) { motionListener.onMotionDetected() } else { motionListener.onMotionStopped() } return true } }) }
38. LED Control
39. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
40. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
41. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
42. Google Assistant Integration
44. Smart Home Apps rely on Home Graph Living Room Kitchen Bedroom Office
45. Smart Home App 1. Setup an OAuth 2.0 server for account linking. 2. Create an Actions on Google developer project. 3. Create an action package, declaring support for Smart Home intents. 4. Provide fulfillment of Smart Home intents. (Cloud function) 5. Test and submit your app for approval.
46. Smart Home - Setup + SYNC
47. Smart Home - EXECUTE Command
48. Smart Home - QUERY Command
50. Google Assistant Example bit.ly/actions-google Hackster Project: bit.ly/hack-at-motion-camera
51. Communication + Storage
52. Firebase
53. Firebase Realtime Database Cloud Firestore BETA
54. Firebase Realtime Database Cloud Firestore - Beta - Advanced Querying - Automatic Scaling - Next Generation - Public - Store and sync data in realtime - Hard querying BETA
55. Firebase Realtime Database data class User(val name: String? = null, val surname: String? = null) val ref = FirebaseDatabase.getInstance().getReference(FIREBASE_MOTION_LOGS).push() ref.setValue(User(“Rebecca”,“Franks”))
56. Firebase val db = FirebaseFirestore.getInstance() val newUser = User("Ada", "Lovelace") db.collection("users") .add(newUser) .addOnSuccessListener { ref -> Log.d(TAG, "Added user with ID: " + ref.id) } .addOnFailureListener { err -> Log.w(TAG, "Error adding user", err) } Cloud Firestore BETA
57. Cloud IoT Core BETA
58. What is Cloud IoT Core? Device Manager Protocol Bridge (MQTT, HTTP)
59. What is Cloud IoT Core?
60. Example Device (Android Things) Google Cloud IoT Core Cloud Pub Sub Server or Cloud Function It is cold It is cold It is cold Turn on heat Turn on heat
61. Or use your own solution…
62. Examples
63. Edison Candle Dave Smith @devunwired
64. BrailleBox Joe Birch @hitherejoe
65. AI Candy Dispenser Alvaro Viebrantz @alvaroviebrantz
66. Wildlife Detector Paul Trebilcox-Ruiz @PaulTR88
67. Automatic and Secure The Power of Android Managed by Google Summary: Why Android Things?
68. More info: docs bit.ly/androidthings codelab bit.ly/at-codelab
69. Thank you! Rebecca Franks Android Engineering Lead at DVT @riggaroo