ME131 Vehicle Dynamics and Control

Repository for homework and lab assignments for Berkeley's ME131 class.

Connecting to the Odroid

1. SSH into the Odroid, connect to the network: barc-traxxas-13

   ssh -X [email protected]

   password: odroid

2. To copy a directory on the BARC back to the local machine

   scp -r [email protected]:/path/to/remote/file /destination/path

   or transfer a file from the local machine to the barc

   scp /path/to/local/file [email protected]:/destination/path

3. There's also stfp login for transferring files

   sftp [email protected] then use get and put (which have -r recursive options) to transfer files back and forth (or mget and mput for multiple files), you can use wildcard flags like mget *.jpg to get all the jpg files in the directory.

4. Lastly, you enter the remote into nautilus like ssh://[email protected] (you can also use ``sftp, it will automatically change ssh` into `sftp` in nautilus) to view its file system in nautilus and copy and files by drag and drop.

Connecting via VNC Viewer

• Make sure that you are connected to your car’s wifi.

• In the VNC server prompt, enter your Odroid’s IP address: 10.0.0.1 and click Ok. You should now see the BARC’s Odroid screen on your laptop, and be able to control it using your regular mouse and keypad.

Running ROS code on the Odroid

1. To start up a data service to record all experiments to rosbags use:

   roslaunch data_service service.launch

   Note this only records default BARC topics.

2. And to run a launch file

   roslaunch labs lab5.launch id:="unique experiment id here"