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Prototyping Wearables with Javascript and MetaWear

Lance Gleason
October 20, 2015

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.

Lance Gleason

October 20, 2015
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  1. Features • Bluetooth Support • Robust API for Android and

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

    IOS • Built in Sensors (temperature, accelerometer etc.) • Built in support for rechargeable batteries
  3. Specs • ! Nordic Semiconductor nRF51822 BLE SoC • !

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

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

    2.4 GHz transceiver • ! ARM®Cortex™-M0 32 bit processor • ! 256 kB flash program memory • ! 16 kB RAM
  6. 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
  7. Specs Continued • Accelerometer • Temperature Sensor • Push Button

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

    Switch • Bright LED • Driver for vibration motor • micro usb chargable
  9. 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
  10. Bluetooth LE • Always off • Less Throughput • Often

    lower transmit power • Designed for low data low power Applications
  11. IOS

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

    • Access to sensors, camera etc. • No need to learn native development