Prototyping Wearables with Javascript and MetaWear

This is a presentation I gave at All things open on prototyping wearables with the Mbientlab Metawear and 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/
20. Software
21. Software
22. Software
23. Software
24. Software
25. Options
32. Features
33. Features • Bluetooth Support
34. Features • Bluetooth Support • Robust API for Android and IOS
35. Features • Bluetooth Support • Robust API for Android and IOS • Built in Sensors (temperature, accelerometer etc.)
36. Features • Bluetooth Support • Robust API for Android and IOS • Built in Sensors (temperature, accelerometer etc.) • Built in support for rechargeable batteries
37. Specs
38. Specs • ! Nordic Semiconductor nRF51822 BLE SoC
39. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • ! 2.4 GHz transceiver
40. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • ! 2.4 GHz transceiver • ! ARM®Cortex™-M0 32 bit processor
41. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • ! 2.4 GHz transceiver • ! ARM®Cortex™-M0 32 bit processor • ! 256 kB flash program memory
42. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • ! 2.4 GHz transceiver • ! ARM®Cortex™-M0 32 bit processor • ! 256 kB flash program memory • ! 16 kB RAM
43. 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
44. Specs Continued
45. Specs Continued • Accelerometer
46. Specs Continued • Accelerometer • Temperature Sensor
47. Specs Continued • Accelerometer • Temperature Sensor • Push Button Switch
48. Specs Continued • Accelerometer • Temperature Sensor • Push Button Switch • Bright LED
49. Specs Continued • Accelerometer • Temperature Sensor • Push Button Switch • Bright LED • Driver for vibration motor
50. Specs Continued • Accelerometer • Temperature Sensor • Push Button Switch • Bright LED • Driver for vibration motor • micro usb chargable
51. 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
54. Cons
55. Cons • Really Small
56. Cons • Really Small • Tough to write custom drivers
57. Cons • Really Small • Tough to write custom drivers • Proprietary
59. Bluetooth
60. Bluetooth • Same Frequency range as 2.4 Gigahertz Wifi
61. Bluetooth • Same Frequency range as 2.4 Gigahertz Wifi • 79 Channels VS 13
62. Bluetooth • Same Frequency range as 2.4 Gigahertz Wifi • 79 Channels VS 13 • Less Throughput
63. Bluetooth LE
64. Bluetooth LE • Always off
65. Bluetooth LE • Always off • Less Throughput
66. Bluetooth LE • Always off • Less Throughput • Often lower transmit power
67. Bluetooth LE • Always off • Less Throughput • Often lower transmit power • Designed for low data low power Applications
70. IOS
71. IOS • IPad 3rd Generation or better
72. IOS • IPad 3rd Generation or better • Iphone 4S or greater
73. Android
74. Android • Bluetooth 4.0 supported radio
75. Android • Bluetooth 4.0 supported radio • Android 4.3 or greater
81. Cordova
82. Cordova • Uses the webview
83. Cordova • Uses the webview • Ability To Package Applications
84. Cordova • Uses the webview • Ability To Package Applications • Access to sensors, camera etc.
85. Cordova • Uses the webview • Ability To Package Applications • Access to sensors, camera etc. • No need to learn native development
87. Twitter @lgleasain Github lgleasain www.lancegleason.com www.polyglotprogrammincinc.com lgleason@polyglotprogramminginc.com