lidar A simple Python script for interfacing with a Laser Rangefinder from eBay: "70m Laser Distance Meter RangeFinder Sensor Distance Measurer Module USB RS232" Currently available from this listing: (User "Phenixtag" (sic.)) http://www.ebay.com/itm/70m-Laser-Distance-Meter-RangeFinder-Sensor-Distance-Measurer-Module-USB-RS232-/322098009515?