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"AdvData" field structure (max 31 octets/bytes):
| Length | length of the payload | 1 octet (15) |
| Type | manufacturer specific data | 1 octet (ff) |
| ManufacturerData | company identifier | 2 octets (4F09) |
| Version | the version of this advertisement structure | 1 octet (uint) |
| UserData | user-configured part of the payload | 1 octet (uint) |
| Secret | optionally encrypted (AES-ECB) part of the payload |
|
| Info |
|---|
Please note that all multi-byte values are in little-endian. Meaning, that if, for example, you want to get the temperature value and #14 and #15 octets indicate the temperature as "a1 19" ("plus" temperature) → the real temperature value is going to be (0x19a1)/256 = 25.6 C. |
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| 0 | 1a | ManufacturerData | company identifier |
| 1 | ff | ManufacturerData | company identifier |
| 2 | 4c | ManufacturerData | company identifier |
| 3 | 00 | ManufacturerData | company identifier |
| 4 | 02 | BeaconType | a secondary identifier |
| 5 | 1521 | RemainingDataLength | defines the remaining length for the payload in bytes |
| 6b2 | xx* | UserData | Proximity UUID |
| 7b9 | xx* | UserData | Proximity UUID |
| 88d | xx* | UserData | Proximity UUID |
| 9e4 | xx* | UserData | Proximity UUID |
| 10c8 | xx* | UserData | Proximity UUID |
| 111c | xx* | UserData | Proximity UUID |
| 1247 | xx* | UserData | Proximity UUID |
| 13c2 | xx* | UserData | Proximity UUID |
| 14b1 | xx* | UserData | Proximity UUID |
| 154e | xx* | UserData | Proximity UUID |
| 1679 | xx* | UserData | Proximity UUID |
| 171b | xx* | UserData | Proximity UUID |
| 183e | xx* | UserData | Proximity UUID |
| 1955 | xx* | UserData | Proximity UUID |
| 2087 | xx* | UserData | Proximity UUID |
| 21ec | xx* | UserData | Proximity UUID |
| 22 | xx* | UserData | Major Number |
| 23 | xx* | UserData | Major Number |
| 24 | xx* | UserData | Minor Number |
| 25 | xx* | UserData | Minor Number |
| 26 | xx* | TxPower | indicates the signal strength at one meter from the device |
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| 0 | 03 | CommonPayload | CompleteUUID |
| 1 | 03 | CommonPayload | CompleteUUID |
| 2 | aa | CommonPayload | CompleteUUID |
| 3 | fe | CommonPayload | CompleteUUID |
| 4 | 17 | CommonPayload | ServiceData |
| 5 | 16 | CommonPayload | ServiceData |
| 6 | aa | CommonPayload | ServiceData |
| 7 | fe | CommonPayload | ServiceData |
| 8 | 00 | CommonPayload | FrameType |
| 9 | xx* | UidPayload | Ranging Data |
| 10b2 | xx* | UidPayload | Nspace |
| 11b9 | xx* | UidPayload | Nspace |
| 128d | xx* | UidPayload | Nspace |
| 13e4 | xx* | UidPayload | Nspace |
| 14c8 | xx* | UidPayload | Nspace |
| 151c | xx* | UidPayload | Nspace |
| 1647 | xx* | UidPayload | Nspace |
| 17c2 | xx* | UidPayload | Nspace |
| 18b1 | xx* | UidPayload | Nspace |
| 194e | xx* | UidPayload | Nspace |
| 20 | xx* | UidPayload | Instance |
| 21 | xx* | UidPayload | Instance |
| 22 | xx* | UidPayload | Instance |
| 23 | xx* | UidPayload | Instance |
| 24 | xx* | UidPayload | Instance |
| 25 | xx* | UidPayload | Instance |
| 26 | 00 | UidPayload | RFU1 |
| 27 | 00 | UidPayload | RFU2 |
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