Setup instructions

Start with:

• Raspberry Pi Model B3
• A Raspbian installation - 32-bit, full desktop version
• LCD35 screen
• ELM 327 bluetooth OBD reader

Set up access to your local network:

• Create wpa_supplicant.conf in the root of the D drive:

country=gb
update_config=1 
ctrl_interface=/var/run/wpa_supplicant

network={
scan_ssid=1
ssid="xxx"
psk="xxx"
}

Enable SSH

• Create empty file called ssh in the root of the D drive.

Software

SSH to your Raspberry Pi from another machine, then:

Set up the screen:

• git clone https://github.com/goodtft/LCD-show.git
• chmod -R 755 LCD-show
• cd LCD-show/
• sudo ./LCD35-show
• Restart the Pi.

General updates:

• sudo apt update
• sudo apt upgrade

Get this code:

• git clone https://github.com/evansabove/car-data.git
• python -m pip install obd

Use bluetoothctl to get MAC address of OBDII adapter. Keep a note of it.

Bluetooth setup - dont do this

• bluetoothctl
• agent on
• scan on
• pair [XX:XX:XX:XX:XX:XX]
• trust [XX:XX:XX:XX:XX:XX]

where [XX:XX:XX:XX:XX:XX] is the MAC address of the OBD adapter.

Script setup

• mkdir /home/pi/.config/autostart
• nano /home/pi/.config/autostart/cardata.desktop
• Add the following code to the file:

  [Desktop Entry]
  Type=Application
  Name=CarData
  Exec=/usr/bin/python3 /home/pi/Projects/car-data/script.py --log=False --port=/dev/rfcomm0
  

00:1D:A5:68:98:8B

sudo rfcomm connect hci0 00:1D:A5:68:98:8B 0h