How to use navigation stack without odometry

edit

Hi, I have a lidar here connecting with raspberry pi (going to install an arduino motor later), and trying to use navigation stack.. however without odometry..

I have searched around and learnt that laser_scan_matcher might be able to produce fake odometry data.. is there any tutorial/ guides on this? (I'm very new on ROS) or is there any other method to get the odometry data?

Please help.