Generate map using raspberry pi with ROS
I have a raspberry pi 3 with ROS installed on it.
Now, I would like to generate a map using my pi and would like to know what would be the best way to generate the map.
What type of device or sensor that I need to attach to my raspberry pi that will generate the map. What would be the best package that I can? I see gmapping and slam packages but not sure what is the difference between them or which one is the best.
Once I generate the map how can I enable ROS to reread the generate map and navigate. Most of the tutorials given are based on a turtlebot but its expensive for me to build currently.
This question is far to vague for anyone to answer. We will need to know how your pi will be moving in the first place, and what sort of environment it will be in. What sort of tasks will it be trying to accomplish?
..Also what your expected budget is