Difference between revisions of "BLEGattCentral"

Revision as of 10:17, 19 September 2017

BLEGattCentral

Bridge BLE GATT services and characteristics read and write to IoT DAP protocol.

• leverages BLE GATT (Generic Attribute Profile) standard
• services and characteristics can be configured setting gattProfileConfig property
  • Advertised device name List of devices name to be discovered (names the manufacture uses to advertise the device)
  • Frequency to read characteristics value(s) an ISO 8601 string duration; representing how frequently characterictics values will be collected; defaults to 1 minute iso 8601 PT1M
  • The amount of read cycles, the smoothing logic will consider for calculating lost observations
  • Service UUID and name

BLEGattCentral GATT configuration

• • Characteristics UUID and name(can be selected for a list of supported characteristics specified at GATT services

Characteristics configuration

• • Metadata information used to parse characteristic buffer
    • parmas
    • extra

Parser configuration

• • Smoothing criteria each values decoded from the characteristic value can be configured to be smoothed based on the following filters
    • never
    • always
    • percentage changed
    • value changed
    • less than
    • greater than
    • range

Smoothing configuration

• Placeholders (See Placeholders)
  • #{bleGattCharacID} Characteristic UUID
  • #{bleGattCharacName} Characteristic name
  • #{bleGattServiceID} Service UUID
  • #{bleGattServiceName} Service name
• Produced observations (see /amtech/linkeddata/types/composite/observation)
  • /amtech/linkeddata/types/composite/observation/bleGattCharacteristic
• Commands (see /amtech/linkeddata/types/composite/observation)
  • /amtech/linkeddata/types/composite/observation/bleGattCharacteristic