RE: what does the advertising data mean?

Colton Boyer — Tue, 30 Jun 2015 14:28:38 GMT

It is also important to note that 02 01 06 isn't part of the UUID. "02" states 2 bytes are following it, "01" is the Flags data type, and "06" is the data for Flags. The Flags data type is unique in that it uses 1 bit Boolean flags. In this case, 0000110. "LE General Discoverable Mode, BR/EDR Not Supported".

For more information on the Flags data type, see section 1.3 of the Supplement to the Bluetooth Core Specification V4.

RE: what does the advertising data mean?

Petter Myhre — Tue, 30 Jun 2015 12:00:30 GMT

Please see this question for how to decode the advertising data.

03 19 41 03 decodes to:

03 - length of 0x03 bytes

19 - type of 0x19, appearance (see this)

41 03 - 0x0341 -> 833 -> BLE_APPEARANCE_HEART_RATE_SENSOR_HEART_RATE_BELT (see this)