Mars Mode Scripts

Scripts to demonstrate simulating button inputs via CAN bus signals in your Tesla Model 3, Y, and newer S and X.

You will find the sample mars mode scripts in examples/marsmode

Bill of Materials

• 1x Raspberry Pi4+Case
• 1x USB-C to USB-A Cable for usage
• 1x USB-A to USB-A Cable for flashing firmware (or flash in car powered by ODB)
• 1x MicroSD Memory Card
• 1x White Comma Panda
• 1x ODB Adapter Cable

Raspberry Pi4 + PiOS + White Comma Panda Install

Operating System image onto MicroSD Card

Go to raspberrypi.com, click Software and download Raspberry Pi Imager for MacOS, Windows or Ubuntu

Open Imager, Select Pi4, Select Other -> Raspberry PiOS Lite (64-bit), Select your Memory Card and Click Next

Note: This was tested and confirmed working with Pi3b + PiOS (Legacy) 64-bit Lite as well

OS Customization Settings: hostname, user+password, wireless, and locale

Click Write and Confirm Overwriting All Files on the memory card

When complete, remove memory card, place into pi4, attach white comma panda via usb, and power up the pi.

Installing the Software

Login via ssh from remote or using keyboard and mouse locally

Automated install for PiOS:

curl https://spleck.net/mars-mode-install | bash

That's it, good luck! If you run into trouble, or just want to see more detail as it works:

curl https://spleck.net/mars-mode-install | V=1 bash

Manual PiOS / Debian / Ubuntu Install Steps

Install system dependencies

sudo apt-get update

sudo apt-get install -y dfu-util gcc-arm-none-eabi python3-pip libffi-dev git scons screen

Clone spleck's panda repo for Mars Mode

git clone https://github.com/spleck/panda.git

setup and activate the local python environment

python -m venv ~/panda/

export PATH=~/panda/bin:$PATH

cd ~/panda

install panda external requirements

pip install -r requirements.txt

install panda software

python setup.py install

add device mappings for udev

sudo tee /etc/udev/rules.d/11-panda.rules <<EOF

SUBSYSTEM=="usb", ATTRS{idVendor}=="bbaa", ATTRS{idProduct}=="ddcc", MODE="0666"

SUBSYSTEM=="usb", ATTRS{idVendor}=="bbaa", ATTRS{idProduct}=="ddee", MODE="0666"

SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE="0666"

EOF

sudo udevadm control --reload-rules && sudo udevadm trigger

build custom firmware so we can enable write mode

cd board 

scons -u

add fixup symlink (not sure how else to fix this?)

for dir in ~/panda/lib/python*/site-packages/pandacan*; do ln -s ~/panda/board $dir/board; done

dfu / recovery if needed

./recover.py

flash with our firmware

./flash.py

Launch Mars Mode Panda Agent at Startup

grep -v ^exit /etc/rc.local >/tmp/.rcl

echo screen -d -m -S mars /home/$USER/panda/examples/marsmode/marsmode-active.sh >>/tmp/.rcl

echo exit 0 >>/tmp/.rcl

cat /tmp/.rcl | sudo tee /etc/rc.local

Add overlay to boot config to allow data on the usb-c power connection from the panda:

echo dtoverlay=dwc2,dr_mode=host | sudo tee -a /boot/firmware/config.txt

Configure Active Mars Mode Script

cd ~/panda/examples/marsmode

./marsmode-active.sh marsmode-mediavolume-basic.py

ALL DONE! Shut down and move to car

sudo halt

Comma.ai and Panda Details

For inforamtion about comma panda visit comma.ai panda

Licensing

panda software and mars mode scripting are released under the MIT license unless otherwise specified.