Bluetooth GATT Characteristic Reference
Object Changed (0x2AC8)
The Object Changed characteristic is defined in the Object Transfer Service Section 3.6 and its sub-sections.
Quick Summary
No fixed value payload is declared in this XML; this entry defines metadata and profile structure. This page is generated from official GATT XML and presented as implementation-ready guidance.
At a Glance
Key reference details for BLE implementation, interoperability testing, and AI-assisted troubleshooting.
| Property | Value |
|---|---|
| Name | Object Changed |
| UUID | 0x2AC8 |
| Type | org.bluetooth.characteristic.object_changed |
| XML Root | Characteristic |
| Source File | org.bluetooth.characteristic.object_changed.xml |
| Field Count | 0 |
Use Cases and Integration Notes
BLE Telemetry
Map characteristic values into dashboards and alerts for device observability.
Firmware Regression
Compare decoded fields across builds to detect protocol or scaling changes.
App Integration
Build stable parsing paths that convert raw payloads into typed app models.
Implementation Checklist
- Validate payload length and mandatory fields before decode.
- Decode with Bluetooth-specified signedness, unit, and exponent handling.
- Convert units at presentation boundaries to avoid drift in business logic.
- Persist raw packets and decoded values for reproducible troubleshooting.
FAQ
What is Object Changed in Bluetooth GATT?
Object Changed is defined as a Bluetooth GATT characteristic entry with type org.bluetooth.characteristic.object_changed and UUID 0x2AC8.
What UUID identifies Object Changed?
The UUID for Object Changed is 0x2AC8.
How should I parse Object Changed?
Parse the structure and requirements from the XML definition, then enforce format/requirement rules in your BLE stack.
Where does this definition come from?
This page is generated from the Bluetooth SIG mirror XML in the oesmith/gatt-xml repository.
How does this page support BLE implementation?
The page combines structured tables, practical Q&A, and JSON-LD metadata to help teams validate integrations and troubleshoot consistently.