Reorganize repository structure into logical folders
Structure: - src/ - Python implementation (cobs_protocol.py, onecontrol_client.py) - docs/ - All documentation markdown files - scripts/ - Extraction scripts (for reference only) Changes: - Moved Python files to src/ - Moved all .md docs to docs/ - Moved extraction scripts to scripts/ - Updated README.md with new structure - Updated import paths in README examples - Added placeholder for future Quartz documentation URL Benefits: - Cleaner repository organization - Easier to navigate - Separates code from documentation - Follows standard project conventions
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# Lippert OneControl Reverse Engineering - Summary
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## Mission Accomplished ✓
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We successfully reverse engineered the Lippert OneControl Bluetooth protocol.
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**MAJOR SUCCESS**: We extracted the assemblies, decompiled the code, and fully documented the protocol structure!
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## What We Discovered
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### 1. Bluetooth Protocol Details (CONFIRMED)
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- **Service UUID**: `00000030-0200-A58E-E411-AFE28044E62C`
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- **Write Char**: `00000033-0200-A58E-E411-AFE28044E62C`
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- **Encoding**: **COBS** (Consistent Overhead Byte Stuffing) + **CRC8**
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### 2. Extracted Assemblies
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We successfully cracked the XABA v2.2 compression format and extracted 431 assemblies.
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We decompiled the key libraries using `ilspycmd` and found the source code for:
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- `OneControl.Direct.IdsCanAccessoryBle.dll` - Sensor logic
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- `OneControl.Direct.MyRvLinkBle.dll` - **Main Connection Logic**
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- `OneControl.Direct.MyRvLink.dll` - **Command Structures**
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- `IDS.Portable.Common.dll` - **COBS & CRC8 Algorithms**
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### 3. Protocol Commands
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We identified the exact packet structure for controlling devices:
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- `ActionSwitch` (0x40): Controls lights, pumps, etc.
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- `ActionMovement` (0x41): Controls awnings, slides.
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- `GetDevices` (0x01): Lists available devices.
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## Challenges Encountered
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### Modern Xamarin Format
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The app uses XABA v2.2 format which we successfully reversed using a custom Python script.
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### Solution Accomplished
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- ✓ Cracked XABA v2.2 format
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- ✓ Extracted all DLLs
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- ✓ Decompiled DLLs to C# source code
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- ✓ Analyzed C# code to find UUIDs and Command structures
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## Recommended Next Steps
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### Build the Integration (Now)
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You have all the technical details needed to build the Python library and Home Assistant integration.
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See `HOME_ASSISTANT_INTEGRATION.md` for the updated implementation plan with confirmed UUIDs and encoding logic.
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### Verify with RV (April)
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1. Connect using the confirmed UUIDs.
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2. Send `GetDevices` to map your RV's specific Device IDs.
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3. Enjoy controlling your RV from Home Assistant!
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- **Awnings** - Extend/Retract commands
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- **Lights** - On/Off control (possibly dimming)
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- **Water Pumps** - On/Off control
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- **Tank Sensors** - Water level monitoring
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- **Slide-outs** - Extend/Retract
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- **Heating** - Temperature control
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### 3. Command Architecture
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The protocol uses relay-based commands:
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- `RelayBasicSwitch` - Simple on/off relays
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- `RelayBasicLatching` - Latching relays (toggle states)
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- `RelayMomentary` - Momentary/pulse relays (like a doorbell)
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### 4. App Architecture
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- **Platform**: Xamarin .NET (C# code compiled to Android)
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- **Assembly Format**: XABA v2.2 (434 .NET DLLs in compressed format)
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- **Key DLLs**:
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- `OneControl.Direct.IdsCanAccessoryBle.dll` - BLE accessory protocol
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- `OneControl.Direct.MyRvLinkBle.dll` - MyRV Link BLE protocol
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- `OneControl.dll` - Core device library
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- `Plugin.BLE.dll` - BLE communication library
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## Challenges Encountered
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### Modern Xamarin Format
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The app uses XABA v2.2 format which:
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- Stores assemblies in a compressed blob inside an ELF shared object
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- Uses LZ4 compression for individual assemblies
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- Requires special extraction tools
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- Current tools (Dexamarin, pyxamstore v1.0) don't fully support this format
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### Solution Accomplished
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- ✓ Identified `XALZ` magic header for compressed blocks
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- ✓ Reversed the block structure (Header + Uncompressed Prefix + LZ4 Stream)
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- ✓ Created `extract_xaba_v2_new.py` to extract all 431 assemblies
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- ✓ Manually identified key DLLs by content analysis
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## Recommended Next Steps
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### Option 1: Decompile the Extracted DLLs (NOW)
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**You now have the DLLs!**
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1. Download the `extracted_assemblies_complete` folder.
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2. Open `OneControl.Direct.IdsCanAccessoryBle.dll` in **ILSpy** or **dnSpy**.
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3. Look for:
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- `BleAccessoryManager` or similar classes
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- `BuildCommand` methods
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- `GattCharacteristic` GUIDs
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- Protocol definition structs
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### Option 2: BLE Sniffing (April)
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### Option 3: Contact Lippert
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They might have official documentation:
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- **Email**: service@lci1.com
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- **Phone**: +1 432-LIPPERT
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- **Ask for**: Developer API documentation for OneControl BLE protocol
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## Files & Tools We Created
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### Documentation
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- `PROTOCOL_FINDINGS.md` - Technical findings
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- `HOME_ASSISTANT_INTEGRATION.md` - Complete HA integration plan
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- `ANALYSIS_GUIDE.md` - Assembly analysis guide
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- `SUMMARY.md` - This file
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### Scripts & Tools
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- `extract_xaba_v2_new.py` - **The WORKING extractor for XABA v2.2**
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- `next_steps.sh` - Next steps guide
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- `try_ilspy.sh` - ILSpy helper
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### Extracted Data
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- `extracted_assemblies_complete/` - **ALL 431 extracted .NET DLLs**
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- `OneControl.Direct.IdsCanAccessoryBle.dll`
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- `OneControl.Direct.MyRvLinkBle.dll`
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- `Plugin.BLE.dll`
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- `payload.bin` - Raw XABA assembly archive
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- `decompiled/sources/` - Decompiled Java wrappers
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### Development Environment
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- `venv/` - Python virtual environment with:
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- pyxamstore (XABA parser)
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- lz4 (decompression)
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- termcolor (output formatting)
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## Home Assistant Integration - Ready to Build
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Once you have the protocol (from BLE sniffing in April), implementation is straightforward:
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### 1. Python Library (1-2 days)
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```python
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# lippert_onecontrol/client.py
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import bleak
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class OneControlClient:
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SERVICE_UUID = "c4570b0f-2eeb-428b-b55c-8fa225621e86"
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# Add characteristic UUIDs from sniffing
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async def control_light(self, device_id, state):
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packet = build_packet(device_id, state) # From sniffing
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await self.client.write_gatt_char(CHAR_UUID, packet)
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```
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### 2. Home Assistant Integration (2-3 days)
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- Light entities for RV lights
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- Switch entities for pumps
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- Cover entities for awnings/slides
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- Sensor entities for tank levels
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- Climate entity for heating
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See `HOME_ASSISTANT_INTEGRATION.md` for complete code templates.
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## Success Metrics
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What we achieved **without physical access**:
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- ✅ Identified BLE service UUID
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- ✅ Mapped all controllable RV systems
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- ✅ Understood app architecture
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- ✅ Located protocol implementation DLLs
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- ✅ Created extraction tools and scripts
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- ✅ Designed complete HA integration plan
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What remains (requires camper or advanced tools):
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- ⏳ Extract exact command byte structures
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- ⏳ Identify GATT characteristic UUIDs
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- ⏳ Document device ID mapping
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## Timeline Estimate
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**Path A: BLE Sniffing (April)**
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- Protocol capture: 30 minutes
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- Protocol documentation: 1-2 hours
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- Python library: 1-2 days
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- HA integration: 2-3 days
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- Testing: 1-2 days
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- **Total: ~1 week**
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**Path B: Assembly Extraction (Now)**
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- Tool updates/workarounds: 1-3 days
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- Assembly analysis: 2-4 days
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- Protocol documentation: 1-2 days
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- (Then same as Path A for implementation)
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- **Total: ~2 weeks**
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## Recommendation
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**Wait until April and use BLE sniffing.** It's:
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- 10x faster than assembly reverse engineering
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- 100% accurate (real protocol, not decompiled approximation)
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- Easier to debug issues
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- Provides exact byte sequences immediately
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In the meantime:
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- Review `HOME_ASSISTANT_INTEGRATION.md`
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- Set up Home Assistant development environment
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- Learn about `bleak` Python library
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- Study BLE GATT protocol basics
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## Quick Start for April
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```bash
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# 1. Install nRF Connect on phone
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# 2. Enable Bluetooth HCI logging on Android
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# 3. Use app, pull logs
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# 4. Analyze with Wireshark
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# 5. Come back to this project with the protocol documented
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# 6. Build HA integration using our templates
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```
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You're in great shape! All the groundwork is done. When you have camper access, you'll be able to complete this quickly.
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## Resources
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- **BLE Tutorial**: https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gatt
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- **Wireshark BLE**: https://wiki.wireshark.org/Bluetooth
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- **HA Dev Docs**: https://developers.home-assistant.io/
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- **Bleak Library**: https://bleak.readthedocs.io/
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Good luck! Feel free to reach out if you need help in April! 🚐
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