Contact person: Android Vehicle Diagnostics App

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Location: Kuala Lumpur, Malaysia

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"**Project Title:**
Android Vehicle Control App - OBD2/CAN Bus Read & Write (Raspberry Pi Based)

**Category:** Mobile App Development / Embedded Systems

**Project Description:**

I need an Android application that runs on Raspberry Pi (Android OS) for complete vehicle diagnostics and control via OBD2 and CAN bus, supporting both wireless and wired connections.

**Core Requirements:**

**1. Connection Support:**
- **Wireless**: Bluetooth (ELM327), WiFi adapters (OBDLink MX+)
- **Wired**: USB OBD2 cables, USB-to-CAN interfaces (CANable, PEAK)
- Auto-detect and switch between multiple connection types
- Simultaneous multi-adapter support

**2. Read Capabilities:**
- Standard OBD2 PIDs (speed, RPM, temperature, DTCs)
- Raw CAN frame monitoring with ID filtering
- Real-time data streaming and logging
- DBC file support for signal decoding
- Vehicle-specific manufacturer PIDs

**3. Write/Control Capabilities:**
- Send custom CAN messages
- Vehicle control functions (doors, windows, lights, climate)
- Actuator tests and diagnostic commands
- Clear diagnostic trouble codes
- Safety confirmations before sending commands

**4. User Interface:**
- **Dashboard**: Live gauges for speed, RPM, temperatures
- **Diagnostics**: Read/clear DTCs with descriptions
- **Control Panel**: Buttons for vehicle functions
- **CAN Monitor**: Raw frame viewer with hex editor
- **Data Logger**: Export to CSV/JSON

**5. Technical Specifications:**
- Target: Android 11+ on Raspberry Pi 4/5
- Display: 7-10" touchscreen support (1024x600 to 1280x800)
- Permissions: USB host, Bluetooth, WiFi, Storage
- Background service for continuous monitoring
- Dark/light theme with auto-switch

**Hardware I Have:**
- Raspberry Pi 5(8GB) with Android OS installed
- 10.1" touchscreen
- ELM327 Bluetooth/USB adapters
- USB CAN interfaces
- Direct CAN transceivers

**Test Vehicles:**
- Mazda3 (2005)
- Ford Ranger (2020)
- Room for adding more vehicles via DBC files

**Key Features Needed:**
1. **Connection Manager**: Handle multiple adapter types
2. **Protocol Layer**: OBD2, Raw CAN, ISO-TP/UDS
3. **Data Processing**: Convert hex to human-readable values
4. **Safety Layer**: Rate limiting, drive-mode restrictions
5. **Logging System**: Historical data with graphs

**Deliverables:**
- Complete Android APK
- Source code with comments
- Basic documentation
- Connection setup guide
- Sample DBC files
- Test procedures

**Required Skills:**
- Android development
- Bluetooth/WiFi/USB serial communication
- OBD2 and CAN protocols
- Hexadecimal data parsing
- Real-time data visualization
- Hardware interface experience

- Experience with ELM327 AT commands
- Knowledge of vehicle communication protocols
- Previous automotive app development
- Understanding of CAN gateways in modern vehicles

**Application Should:**
- Work offline once connected
- Support both portrait and landscape
- Handle connection drops gracefully
- Provide real-time updates (<100ms latency)
- Include safety features for write operations

- OBD2 reading via Bluetooth/USB
- Basic CAN monitoring
- Live dashboard
- DTC read/clear
- CAN control
- Custom vehicle profiles
- Cloud sync capability

**To Apply, Please:**
1. Confirm you understand the difference between reading and writing CAN data
2. Describe your approach for handling multiple connection types
3. Share any similar projects you've done
4. Provide estimated timeline and cost breakdown
5. Mention which parts might be challenging

**NOT Looking For:**
- iOS developers
- Web-only developers
- Basic OBD2 readers without CAN support

**Required Skills:**
Android, Bluetooth, USB Serial, OBD2, CAN Bus, Kotlin, Java, Real-time Systems, Data Visualization, Automotive" (client-provided description)