DevFest NYC - Ok Google, Build an Android Things Product

Rebecca covered the basics of Android Things, and how you can integrate with the Google Assistant.

1. Ok Google, Make an Android Things Product Rebecca Franks Android Engineering Lead at DVT Google Developer Expert Android @riggaroo
2. riggaroo.co.za
6. Android Things
7. Android Things is an extension of the Android platform for IoT and embedded devices.
8. 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.
9. Similarities Any other Android library... Android SDK Play Services Firebase Android Studio Cloud Platform
10. Differences No Play Store Deploy OTAs Subset of APIs Custom Hardware Single Purpose Device
11. 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
12. 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
13. 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
14. SoM Architecture Google Managed BSP
15. Distribution with Android Things Android Framework Hardware Libraries Linux Kernel Managed by Google Apps User Drivers Managed by Developers
16. 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
21. Automatic Security Updates Signed Images Verified Boot A/B Rollback Protection
22. Developing for Android Things
23. Developer Kits NXP I.MX7D Raspberry Pi 3
24. 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
25. Build a Motion Sensing Camera
26. Motion Sensing Camera
27. Pico i.MX7 Pinout * there was a change in pin naming in DP6
31. //Automatically added in app level build.gradle compileOnly 'com.google.android.things:androidthings:...'
32. //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>
33. //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>
34. Working with a Motion Sensor
35. 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
36. PIR Sensor
37. Motion Sensor Control
38. //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 } }) }
39. //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 } }) }
40. //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 } }) }
41. LED Control
42. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
43. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
44. val peripheralManagerService = PeripheralManagerService() ledGpio = peripheralManagerService.openGpio(LED_GPIO_PIN) ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) ledGpio.value = true ledGpio.close()
45. Google Assistant Integration
47. Actions on Google Conversational Actions - Two way dialog - Your action manages the conversation “Ok Google, Talk to Spelling Master” Direct Actions - Google handles the entire user interaction - You only handle the fufilment “Ok Google, Turn off the Motion Sensing Alarm”
48. Smart Home Apps rely on Home Graph Living Room Kitchen Bedroom Office
49. How do you create a Smart Home App?
50. 1. Setup OAuth 2.0 Server for account linking ...or fake it for testing :)
51. 2. Create actions on Google project console.actions.google.com
53. 3. Create an action package, declaring support for Smart Home intents.
54. { "actions": [{ "name": "actions.devices", "deviceControl": { }, "fulfillment": { "conversationName": "automation" } }], "conversations": { "automation" : { "name": "automation", "url": "https://example.com/google-assistant/endpoint" } } }
55. 4. Provide fulfillment of Smart Home intents. (Cloud function)
56. Smart Home - Setup + SYNC
57. Smart Home - EXECUTE Command
58. Smart Home - QUERY Command
59. 5. Test and submit your app for approval.
61. Google Assistant Example bit.ly/actions-google Hackster Project: bit.ly/hack-at-motion-camera
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. Workshop Android Things- Building a Motion Sensing Camera - Tomorrow! 13:00
70. Thank you! Rebecca Franks Android Engineering Lead at DVT @riggaroo