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
   

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2. Twitter @lgleasain
   Github lgleasain
   www.lancegleason.com
   www.polyglotprogrammincinc.com
   lgleason@polyglotprogramminginc.com
   

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11. http://www.polyglotprogramminginc.com/purr-
    programming-2-0/
    

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20. Software
    

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21. Software
    

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22. Software
    

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23. Software
    

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24. Software
    

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25. Options
    

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32. Features
    

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33. Features
    • Bluetooth Support
    

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34. Features
    • Bluetooth Support
    • Robust API for Android and IOS
    

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35. Features
    • Bluetooth Support
    • Robust API for Android and IOS
    • Built in Sensors (temperature,
    accelerometer etc.)
    

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36. Features
    • Bluetooth Support
    • Robust API for Android and IOS
    • Built in Sensors (temperature,
    accelerometer etc.)
    • Built in support for rechargeable
    batteries
    

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37. Specs
    

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38. Specs
    • ! Nordic Semiconductor nRF51822 BLE SoC
    

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39. Specs
    • ! Nordic Semiconductor nRF51822 BLE SoC
    • ! 2.4 GHz transceiver
    

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40. Specs
    • ! Nordic Semiconductor nRF51822 BLE SoC
    • ! 2.4 GHz transceiver
    • ! ARM®Cortex™-M0 32 bit processor
    

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41. Specs
    • ! Nordic Semiconductor nRF51822 BLE SoC
    • ! 2.4 GHz transceiver
    • ! ARM®Cortex™-M0 32 bit processor
    • ! 256 kB flash program memory
    

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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
    

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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
    

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44. Specs Continued
    

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45. Specs Continued
    • Accelerometer
    

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46. Specs Continued
    • Accelerometer
    • Temperature Sensor
    

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47. Specs Continued
    • Accelerometer
    • Temperature Sensor
    • Push Button Switch
    

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48. Specs Continued
    • Accelerometer
    • Temperature Sensor
    • Push Button Switch
    • Bright LED
    

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49. Specs Continued
    • Accelerometer
    • Temperature Sensor
    • Push Button Switch
    • Bright LED
    • Driver for vibration motor
    

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50. Specs Continued
    • Accelerometer
    • Temperature Sensor
    • Push Button Switch
    • Bright LED
    • Driver for vibration motor
    • micro usb chargable
    

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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
    

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54. Cons
    

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55. Cons
    • Really Small
    

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56. Cons
    • Really Small
    • Tough to write custom drivers
    

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57. Cons
    • Really Small
    • Tough to write custom drivers
    • Proprietary
    

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59. Bluetooth
    

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60. Bluetooth
    • Same Frequency range as
    2.4 Gigahertz Wifi
    

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61. Bluetooth
    • Same Frequency range as
    2.4 Gigahertz Wifi
    • 79 Channels VS 13
    

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62. Bluetooth
    • Same Frequency range as
    2.4 Gigahertz Wifi
    • 79 Channels VS 13
    • Less Throughput
    

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63. Bluetooth LE
    

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64. Bluetooth LE
    • Always off
    

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65. Bluetooth LE
    • Always off
    • Less Throughput
    

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66. Bluetooth LE
    • Always off
    • Less Throughput
    • Often lower transmit power
    

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67. Bluetooth LE
    • Always off
    • Less Throughput
    • Often lower transmit power
    • Designed for low data low power
    Applications
    

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70. IOS
    

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71. IOS
    • IPad 3rd Generation or better
    

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72. IOS
    • IPad 3rd Generation or better
    • Iphone 4S or greater
    

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73. Android
    

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74. Android
    • Bluetooth 4.0 supported radio
    

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75. Android
    • Bluetooth 4.0 supported radio
    • Android 4.3 or greater
    

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81. Cordova
    

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82. Cordova
    • Uses the webview
    

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83. Cordova
    • Uses the webview
    • Ability To Package Applications
    

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84. Cordova
    • Uses the webview
    • Ability To Package Applications
    • Access to sensors, camera etc.
    

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85. Cordova
    • Uses the webview
    • Ability To Package Applications
    • Access to sensors, camera etc.
    • No need to learn native
    development
    

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87. Twitter @lgleasain
    Github lgleasain
    www.lancegleason.com
    www.polyglotprogrammincinc.com
    lgleason@polyglotprogramminginc.com
    

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