Hi guys,
does anyone know of a relatively cheap sensor solution for 2D mapping? don't need it to be (laser) accurate. just good enough to build a 2D map for some basic indoor navigation job.
Sonar, IR, anything that might do the job.
**UPDATE:**
i also found [LiDAR-Lite](http://pulsedlight3d.com) i guess its fairly new to the marker. it is also very cheap but it should be modified to cover 360 degree around it. anyone tried it before?
Thanks for the ideas n answers.
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