Project for logging OBD data on a Raspberry Pi 3 using Raspbian, .NET Core 3.0 and a PiJuice

• Use Raspbian Lite

sudo apt install pijuice-base

Open PiJuice configuration file using: sudo nano /var/lib/pijuice/pijuice_config.JSON

• shutdown on no_power event
• start on power connected

{
        "system_events": {
                "no_power": {
                        "function": "SYS_FUNC_HALT_POW_OFF",
                        "enabled": true
                }
        },
        "system_task": {
                "enabled": true,
                "wakeup_on_charge": {
                        "enabled": true,
                        "trigger_level": "0"
                }
        }
}

• enable RTC drivers
• sync RTC

Restart the PiJuice service sudo service pijuice start

• using bluetoothctl
• connect BT OBD

Add the following lines to /etc/rc.local using sudo nano /etc/rc.local

sudo rfcomm bind /dev/rfcomm0 <macaddr> && sudo chmod 0777 /dev/rfcomm0

Replace with the MAC-address for your OBD2 adapter found using bluetoothctl

• download from an url
• extract (possibly to /opt)

• handle time before BT connected (less than 30 seconds, more than 15 seconds in test)
• add app to rc.local or make service