Mapping a Lake with ArduPilot

A slightly long video showing the steps to create a 2D or 3D map of a lake. The vehicle is an EAMS Lab (elab.co.jp) low cost drone boat with a Cube autopilot, ECT400 echosounder from EchoLogger.com and thrusters from BlueRobotics.com. ReefMaster was used to create the 2D and 3D maps.
A blog post is here: discuss.ardupi...
Build instructions: ardupilot.org/...