whimsey75 / PythonCarDisplay

OBD2 Car-Display written in python for a Raspberry Pi with 480x320 display

Python Car Display

This is a display for my car written in python, it will connect to your OBD2 Adapter via bluetooth.

🐍 + 🚗 = ❤️

How to use it

You need to have Python3, Tkinter and bluez installed

sudo apt install python3 python3-tk bluez

Also you need the pip module OBD

pip3 install obd

Optional: Install the aldrich font https://fonts.google.com/specimen/Aldrich

1. Replace the MAC Address (00:1D:A5:68:98:8B) in the file connectToOBD2.sh with your OBD2 Adapter MAC. To get the MAC address use bluetoothctl, type "scan on" and it will get listed if your Pi is able to reach it.

pi@CorsaC:~/cardisplay $ sudo bluetoothctl
[NEW] Controller 00:1A:7D:DA:71:13 CorsaC [default]
[bluetooth]# scan on
[NEW] Device 00:1D:A5:68:98:8B OBDII
[NEW] Device 08:AE:D6:67:79:DC Galaxy S9+

if [ ! -f /dev/rfcomm0 ]; then
  # Replace the MAC below
  sudo rfcomm connect hci0 00:1D:A5:68:98:8B 1 &
fi

2. Create a cronjob for this script

sudo crontab -e

3. Add this to the end of the file (every minute it will try to connect to your OBD2 adapter)

*/1 *  *  *  * sh connectToOBD2.sh

4. After you've done that start the cardisplay.py

python3 cardisplay.py

5. (Optional) Create an autostart file for it (this is for the XFCE Desktop)

nano /home/pi/.config/autostart/cardisplay.desktop

[Desktop Entry]
Encoding=UTF-8
Version=0.1
Type=Application
Name=Cardisplay
Comment=Cardisplay
Exec=/usr/bin/python3 /home/pi/cardisplay/cardisplay.py
StartupNotify=false
Terminal=false
Hidden=false

Images

Credits

❤️ PyOBD - https://python-obd.readthedocs.io/en/latest/

❤️ Tkinter - https://wiki.python.org/moin/TkInter