IoT Design Thinking, Prototyping and Ideation

This presentation was given at GDG DevFest Nairobi 2017, Strathmore University on the 11th November 2017 during the second session on IoT. It covers the steps and tools you need to go from your developer kit prototype to fabricating custom boards for your own product.

Transcript

2. Ngesa N. Marvin IoT Champion for GDGs, SSA +Ngesa Marvin @Ngesa254
3. Android Things Candle
4. Hardware is Hard
6. SoM Architecture Google Managed BSP
7. From Prototype to Production
8. Simplified Certification and Testing
9. Interchengeable Available Supported
10. Building Your Designs
11. Determining the Need The application of the PCB, such as medical or automotive, will often determine the materials in the PCB
12. Critical Component Selection
13. Ohms Law
14. Sensors and Actuators
15. Groove Starter Kit Starter Kits
16. Starter Kits
17. Pico Maker Kit
19. Schematics
20. Layout
21. Fabricating the PCB Fabrication Assembly
22. Shematic Layout Gerbers BOM XYRS
23. OSH Park CircuitHub MacroFab Fabrication Assembly
24. Hands Soldering for novices
25. • Circuit • Tweezers • Soldering Gun • Components • Soldering Station (Iron) What you need:
27. Evaluate, Debug, Repeat
28. Microcontroller Programming
29. Displays are Optional Consider Alternate UI
33. Creating Android Things Project
35. GPIO PMW I2C SPI UART I2S Peripheral I/O – Low Level Access Hardware Intergration
36. GPIO PMW I2C SPI UART I2S Peripheral I/O – Low Level Access Hardware Intergration Button GPS RGB LED Strip PWM Servo Temperature Sensor Capacitive Touch Buttons Peripheral Driver Library - GitHub + many more…
40. dependencies { provided 'com.google.android.things:androidthings:...' } <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> Home Activity
41. GPIO PWM I2C I2S SPI Peripheral I/O UART
42. // Open a peripheral connection PeripheralManagerService service = new PeripheralManagerService(); Gpio button = service.openGpio(GPIO_PIN_NAME); // Configure the peripheral button.setDirection(Gpio.DIRECTION_IN); button.setEdgeTriggerType(Gpio.EDGE_FALLING); // Attach callback for input events button.registerGpioCallback(new GpioCallback() { @Override public boolean onGpioEdge(Gpio gpio) { Log.i(TAG, "GPIO changed"); // Return true to continue listening to events return true; } }); Simple Peripheral I/O
43. GPIO PWM I2C I2S SPI Audio Input Sensors Peripheral I/O User Drivers GPS UART
44. private GpioCallback callback = new GpioCallback() { @Override public boolean onGpioEdge(Gpio gpio) { int keyAction = gpio.getValue() ? KeyEvent.ACTION_DOWN : KeyEvent.ACTION_UP; inputDriver.emit(new KeyEvent[]{ new KeyEvent(keyAction, KeyEvent.KEYCODE_SPACE)}); return true; } }; Button User Driver InputDriver driver = new InputDriver.Builder(InputDevice.SOURCE_CLASS_BUTTON) .setName(DRIVER_NAME) .setVersion(DRIVER_VERSION) .setKeys(new int[]{KeyEvent.KEYCODE_SPACE}) .build(); UserDriverManager.getManager().registerInputDriver(driver);
45. GPIO PWM I2C I2S SPI Audio Input Sensors Peripheral Driver Library Peripheral I/O User Drivers GPS UART
46. dependencies { compile 'com.google.android.things.contrib:driver-button:...' } ButtonInputDriver inputDriver = new ButtonInputDriver( GPIO_PIN_NAME, Button.LogicState.PRESSED_WHEN_LOW , KeyEvent.KEYCODE_SPACE ); inputDriver.register(); Button Library Driver
48. More Examples On GitHub
49. Encloseure Developemt
50. Jony Ive Senior Vice President Design, Apple
51. Commercial production • Enclosure • Packaging and instructions • Power Supply and Cables • Certifications
52. The Power of Android Automatic and Secure Managed by Google Why Android Things?
53. Google's IoT Developers Community https://g.co/iotdev Android Things SDK https://developer.android.com/things Hackster.io Community https://hackster.io/google What’s Next? Ngesa N. Marvin IoT Champion for GDGs, SSA +Ngesa Marvin @Ngesa254