Prototyping Wearable Devices Using Javascript

Slide deck for my presentation at Connect-JS 2015 on prototyping wearable devices using Javascript.

Transcript

1. Introductions
2. Twitter @lgleasain Github lgleasain www.lancegleason.com www.polyglotprogrammincinc.com lgleason@polyglotprogramminginc.com
11. http://www.polyglotprogramminginc.com/purr- programming-2-0/
19. Software
20. Options
22. Pros •Extensible •Common Pinouts
23. Cons • Impossible to create a at scale prototype • Many extensions overkill for wearables
25. Pros • Inexpensive • Available GPS Module • Low Power • Aduino Based • Lots of Support
26. Cons • No easy way to integrate Bluetooth or Wifi • Requires a physical connection to get data • Things like an accelerometer require a separate component
31. Features • Bluetooth Support • Robust API for Android and IOS • Built in Sensors (temperature, accelerometer etc.) • Built in support for rechargeable batteries
32. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • ! 2.4 GHz transceiver • ! ARM®Cortex™-M0 32 bit processor • ! 256 kB flash program memory • ! 16 kB RAM • ! 8/9/10 bit ADC
33. Specs Continued • Accelerometer • Temperature Sensor • Push Button Switch • Bright LED • Driver for vibration motor • micro usb chargable • I2C bus, and support for 4 digital/analog and 4 digital pins
36. Cons • Really Small • Tough to write custom drivers • Proprietary
38. Bluetooth • Same Frequency range as 2.4 Gigahertz Wifi • 79 Channels VS 13 • Less Throughput
39. Bluetooth LE • Always off • Less Throughput • Often lower transmit power • Designed for low data low power Applications
42. IOS • IPad 3rd Generation or better • Iphone 4S or greater
43. Android • Bluetooth 4.0 supported radio • Android 4.3 or greater
48. Cordova • Uses the webview • Ability To Package Applications • Access to sensors, camera etc. • No need to learn native development
52. Twitter @lgleasain Github lgleasain www.lancegleason.com www.polyglotprogrammincinc.com lgleason@polyglotprogramminginc.com