wes
7dd4f55a0c
✅ Protocol fully reversed from decompiled Xamarin app ✅ All 431 .NET assemblies extracted and decompiled ✅ COBS encoder/decoder implemented in Python ✅ CRC8 checksum implementation ✅ Complete BLE client for OneControl devices ✅ Comprehensive documentation Files included: - cobs_protocol.py: COBS encoding/decoding + CRC8 - onecontrol_client.py: Full BLE client implementation - Complete protocol documentation - Home Assistant integration guide - ESPHome Bluetooth Proxy setup - Extraction scripts for reference Ready for testing with RV hardware (April 2025)
181 lines
5.5 KiB
Markdown
181 lines
5.5 KiB
Markdown
# Lippert OneControl - Bluetooth Protocol Reverse Engineering
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**Status**: ✅ **PROTOCOL FULLY REVERSED** - Ready for Testing
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Reverse engineered Bluetooth protocol for Lippert OneControl RV control systems to enable Home Assistant integration.
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## 🎉 Mission Accomplished
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All 431 .NET assemblies successfully extracted and decompiled to C# source code. Complete protocol specification documented and working Python implementation created.
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## 🚀 Quick Start
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### Installation
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```bash
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python -m venv venv
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source venv/bin/activate
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pip install bleak
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```
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### Scan for OneControl Device
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```bash
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python onecontrol_client.py
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```
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Edit the `ADDRESS` variable in `onecontrol_client.py` with your device's MAC address after scanning.
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## 🔑 Protocol Details
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### Bluetooth UUIDs (Confirmed from Source)
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- **Service UUID**: `00000030-0200-A58E-E411-AFE28044E62C`
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- **Write Characteristic**: `00000033-0200-A58E-E411-AFE28044E62C`
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- **Read Characteristic**: `00000034-0200-A58E-E411-AFE28044E62C`
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### Encoding
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- **Protocol**: COBS (Consistent Overhead Byte Stuffing) with 6-bit packing
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- **Checksum**: CRC8 (polynomial 0x07, init value 0x55)
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- **Sequence**: 16-bit little-endian counter
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### Packet Structure (Unencoded)
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```
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[Sequence (2 bytes, LE)] [Command Type (1)] [Table ID (1)] [Payload...] [CRC8 (1)]
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```
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Then COBS encoded before transmission.
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### Command Types
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| Command | Value | Description |
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|---------|-------|-------------|
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| GetDevices | `0x01` | Discover all RV devices |
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| ActionSwitch | `0x40` | Lights, pumps, fans (on/off) |
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| ActionMovement | `0x41` | Awnings, slides (extend/retract/stop) |
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| ActionDimmable | `0x43` | Dimmable lights (0-100%) |
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| ActionRgb | `0x44` | RGB lights |
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| ActionHvac | `0x45` | Climate control |
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## 📁 Project Files
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### Python Implementation
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- **cobs_protocol.py** - COBS encoder/decoder and CRC8 implementation
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- **onecontrol_client.py** - Complete BLE client for OneControl devices
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### Documentation
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- **PROTOCOL_FINDINGS.md** - Detailed protocol specification
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- **IMPLEMENTATION_GUIDE.md** - Complete implementation guide with examples
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- **HOME_ASSISTANT_INTEGRATION.md** - Home Assistant integration plan
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- **MISSION_ACCOMPLISHED.md** - Project completion summary
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### Source Code (Decompiled)
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- **decompiled/** - 431 decompiled .NET assemblies (C# source)
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- Key files: `DirectConnectionMyRvLinkBle.cs`, `MyRvLinkCommandType.cs`, `CobsEncoder.cs`, `Crc8.cs`
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## 💻 Usage Example
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```python
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from onecontrol_client import OneControlClient
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# Connect to device
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client = OneControlClient("AA:BB:CC:DD:EE:FF")
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await client.connect()
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# Discover all RV devices
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await client.get_devices()
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# Control lights
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await client.turn_on_light(5) # Turn on device ID 5
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await client.turn_off_light(5) # Turn off device ID 5
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# Control awning/slide
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await client.control_awning(8, 1) # Extend (device ID 8)
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await client.control_awning(8, 0) # Retract
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await client.control_awning(8, 2) # Stop
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# Dimmable light
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await client.set_dimmer(3, 75) # Set device ID 3 to 75%
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# Disconnect
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await client.disconnect()
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```
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## 🔧 How It Was Done
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1. **Extracted Lippert Connect APK** (v6.2.2) - Xamarin app
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2. **Extracted 431 .NET assemblies** from 85MB XABA v2.2 blob using ilspycmd
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3. **Decompiled to C# source** - Full protocol implementation visible
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4. **Found BLE UUIDs** in `DirectConnectionMyRvLinkBle.cs`
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5. **Reverse engineered COBS encoding** from `CobsEncoder.cs`
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6. **Implemented CRC8** from `Crc8.cs`
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7. **Created Python client** - Ready to test!
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## 🎯 Next Steps
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### When RV is Available (April 2025)
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- [ ] Test Python client with actual RV
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- [ ] Run `get_devices()` to discover device IDs
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- [ ] Map device IDs to physical components
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- [ ] Test all command types (lights, awnings, pumps, etc.)
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- [ ] Document device ID mapping for your specific RV
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### Home Assistant Integration
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- [ ] Build custom component using Python client
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- [ ] Implement entity types (light, switch, cover, sensor)
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- [ ] Add configuration flow
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- [ ] Set up ESPHome Bluetooth Proxy for range extension
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- [ ] Test end-to-end
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- [ ] Publish to HACS
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## 📚 Full Documentation
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Complete documentation available in Obsidian vault:
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```
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/home/wes/Documents/weeslahw_coppermind/Home Automation/Lippert OneControl/
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```
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See `00_INDEX.md` for quick navigation.
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## 🛠️ Development Tools Used
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- **Dexamarin** - Xamarin APK decompiler
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- **ilspycmd** - .NET to C# decompiler
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- **Bleak** - Python BLE library
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- **ILSpy** - .NET assembly browser
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## ⚡ RV Systems Supported
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Based on decompiled source code:
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- ✅ Lights (on/off, dimmable, RGB)
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- ✅ Water pumps
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- ✅ Awnings (extend/retract/stop)
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- ✅ Slide-outs (extend/retract/stop)
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- ✅ Water tank sensors (fresh, grey, black)
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- ✅ HVAC/Climate control
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- ✅ Generator controls
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## 📞 Resources
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- **Lippert Support**: service@lci1.com / +1 432-LIPPERT
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- **Home Assistant Dev**: https://developers.home-assistant.io/
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- **ESPHome**: https://esphome.io/components/bluetooth_proxy.html
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- **Bleak Docs**: https://bleak.readthedocs.io/
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## 🙏 Acknowledgments
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- **Dexamarin**: https://github.com/alexisflive/Dexamarin
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- **ILSpy**: https://github.com/icsharpcode/ILSpy
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## ⚖️ License & Disclaimer
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This is a reverse engineering project for personal use and home automation. The protocol implementation is based on analysis of publicly available software.
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**This project is not affiliated with or endorsed by Lippert Components Inc.**
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Use at your own risk. Testing with actual RV hardware is your responsibility.
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---
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**Current Status**: 🟢 Protocol fully reversed | 🟡 Awaiting RV access for testing (April 2025) | 🔵 Ready for HA integration development
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