TeslaCam

Tesla's Version 9 [2018.39.x] introducted a feature allowing users to store 1 rolling hour (60, one minute files) of video from the front facing autopilot camera. This project attempts to extend (and ultimately archive) the video storage beyond 1 hour.

Update: 2019.9.x is now supported but requires 3x the storage as it uses 3 cameras.

Hardware Requirements

Raspberry Pi Zero W
PiJuice HAT
USB A to Micro B cable

How it works

The teslacam service creates and makes available a 8GB USB Mass Storage device with the required "TeslaCam" directory. The Tesla sees, mounts and writes video files from the front camera to the USB Mass Stroage device.

Every 5 minutes the teslacam service mounts (read only) the 8GB Mass Storage device and rsyncs the files to /data/TeslaCam and the 50 oldest files in /data/TeslaCam are removed until ~20GB of storage is available on / (root)

When the powermonitor service sees that the the Tesla has cut power to the Raspberry Pi it sets the PiJuice to start the Raspberry Pi when power is restored and instructs the Raspberry Pi to shut down.

When the teslacam service recives a SIGTERM it takes the 8GB USB Mass Storage device offline, mounts it, and complets a final rsync to /data/TeslaCam

If /home/pi/remotesync.sh exists and is excutable it is executed...

Once the teslacam service is complete the Raspberry Pi shuts down.

Installation

Add/Solder 40 pins to the GPIO header of the Raspberry Pi Zero W.

Attach the PiJuice HAT to the Raspberry Pi Zero W, be sure to include the run pin (pogo pin) connecting TP2 on the Raspberry Pi. https://github.com/PiSupply/PiJuice/blob/master/Hardware/README.md#unpopulated

Write the rasbian image to a sufficiently large SD card. (I would suggest 128GB at minimum)

dd if=2018-10-09-raspbian-stretch-lite.img of=/dev/sdX bs=1MB

Mount the 'boot' partition..

Edit config.txt in the boot partition and add the following line to the bottom

dtoverlay=dwc2

Edit cmdline.txt in the boot partition and add the following after rootwait

modules-load=dwc2

Create and empty file called ssh in the boot partition

touch /path/to/sd/boot/ssh

Create wpa_supplicant.conf in the boot partition and add the followig config.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
network={
    ssid="YOURSSID"
    psk="YOURPSK"
    key_mgmt=WPA-PSK
}

Unmount/Eject the SD card from your PC and use it to boot your Raspberry Pi Zero W.

At this point the Rraspberry Pi should boot and join your Wifi Network. You can find the IP address of your device from your router/DHCP server -or- you can attempt to resolve the device using the netowrk name raspberrypi.local

SSH to your Raspberry Pi. (Default password is raspberry )

ssh pi@raspberrypi.local

Install the PiJuice command utilities/libraries

sudo apt-get install pijuice-base

Enable the PiJuice Run Pin

pijuice_cli.py -> General -> Run pin -> INSTALLED -> Back -> Apply Settings -> Back -> Exit

Install the teslacam and powermonitor services

curl -o /home/pi/service.sh https://raw.githubusercontent.com/LelandSindt/teslacam/master/service.sh
curl -o /home/pi/powermonitor.py https://raw.githubusercontent.com/LelandSindt/teslacam/master/powermonitor.py
chmod -v +x powermonitor.py service.sh
sudo curl -o /etc/systemd/system/teslacam.service https://raw.githubusercontent.com/LelandSindt/teslacam/master/teslacam.service
sudo curl -o /etc/systemd/system/powermonitor.service https://raw.githubusercontent.com/LelandSindt/teslacam/master/powermonitor.service
sudo systemctl daemon-reload
sudo systemctl enable teslacam
sudo systemctl start teslacam
sudo systemctl enable powermonitor
sudo systemctl start powermonitor

Developed for/Tested on: 2018-10-09-raspbian-stretch-lite

Credit for some of the command/installation procedure goes to: https://www.reddit.com/r/raspberry_pi/comments/9mbgzn/tesla_v9_dash_cam_archiver/

Credit for some of the 2018.5.x support goes to: cimryan/teslausb#125, thank you @rounders for bringing it to my attention.