iot-gateway

Our implementation of the gateway described in "The Internet of Things Has a Gateway Problem".

• /app/Gateway : the Android Gateway app implementing BLE Profile Proxy.
• /app/Peripheral : an Android Peripheral app to advertise & test API for BLE peripherals.
• /datacloud : a simple responsive server implemention using NodeJS; demonstrates API for servers.
• /squall : squall apps that use Gateway API.
• index.html : log of received data at the gateway, data cloud, and incentive cloud
• example.html : example visualization of data from the Tessel app
• raw.html : raw output of data sent to data cloud (when received at GATD)

API

To use Gateway, a peripheral specifies the following in the advertisement service data:

• Shortened Destination URL (up to 14 characters), sans protocol [14 bytes]
• Incentive Program Level (0-15) [.5 bytes]
• Reliability Level (0-15) [.5 bytes]
• Gateway Services Requested [1 byte]
  • Time Access (0/1)
  • GPS Access (0/1)
  • Accelerometer Access (0/1)
  • Ambient Light Sensor Access (0/1)
  • User Text Input Request (0/1)
  • User Camera Input Request (0/1)
  • Web UI Display Request (0/1)
  • IP Over BLE Request (Reserved) (0/1)
• Custom App Data (up to 10 bytes)

For instance, if a peripheral advertised 676f6f2e676c2f6a524d7845300077C0BEEF, it would be parsed as:

• Destination: 676f6f2e676c2f6a524d784530000 -> "goo.gl/jRMxE0"
  • resolves to http://gatewaycloud.elasticbeanstalk.com, a data server expecting POSTs from Gateway
• Incentive Program Level: 7
• Reliability: 7
• Gateway Services Requested : C0 -> Time Access & GPS Access
• Custom App Data: BEEF