Contents
Project Overview
Transform your car's interior with a custom digital dashboard. This Raspberry Pi-based system replaces or supplements your factory display.
Features:
- 7-10" touchscreen display
- Google Maps/Waze navigation
- Spotify/Apple Music
- Real-time OBD-II data
- Google Assistant/Alexa
- Bluetooth hands-free
- Backup camera input
Hardware Required
- Raspberry Pi 4 (4GB): Main computer
- 7" Official Touchscreen: Or aftermarket display
- ELM327 USB: OBD-II reader
- USB Sound Card: Audio output
- Microphone: Voice commands
- Power Supply: 12V to 5V buck converter
Software Setup
# Install Raspberry Pi OS
sudo apt update
sudo apt upgrade
# Install required packages
sudo apt install python3-pip python3-gps python3-serial
pip3 install obd python-vlc
# Install navigation
sudo apt install navit
# Auto-start on boot
sudo nano /etc/xdg/lxsession/LXDE-pi/autostart
@chromium-browser --kiosk --app=http://localhost:8080
Dashboard UI
Create custom dashboard with HTML/CSS/JavaScript or use existing solutions:
- OpenAuto Pro: Android Auto clone
- PiAuto: Car dashboard UI
- Custom React/Vue app: Full control
OBD-II Integration
import obd
connection = obd.OBD("/dev/ttyUSB0")
cmd = obd.commands.SPEED
response = connection.query(cmd)
speed = response.value.magnitude
print(f"Speed: {speed} km/h")
Voice Assistant
Integrate Google Assistant SDK:
- Install Assistant SDK
- Configure OAuth credentials
- Add push-to-talk button
- Route audio through car speakers
Mounting Options:
- DIN slot mount (single/double)
- Dash mount with custom bracket
- Headrest mount for rear passengers
- Sun visor mount (smaller displays)
Next Steps
- Add CAN bus integration
- Implement driver profiles
- Add dashcam functionality
- Integrate with smart home
Related: OBD-II Monitor | Smart Traffic