Hello,
Is there a way we can use YDLIDAR G4 to do the 3D mapping? If yes, is there an associated code I can build upon? Thank you in advance.
The YDLIDAR G4 is a 2d scanner. To make it 3d you'd have to arrange to spin the whole unit on an axis orthogonal to the scan .
Not an easy mechanical problem.
Allan
Take a look at a 3D scan done with the Lidar Lite V3, with much better range and much lower price: Hobby Lidar Build - Page 1
Also the Arduino won't be able to do much with the data from the scanner, as it just doesn't have the memory to deal with all that.
wvmarle:
Also the Arduino won't be able to do much with the data from the scanner, as it just doesn't have the memory to deal with all that.
Arduino 3D scanner DIY
You dont need to do anything with collected data except saving it into .ply or .stl file and post-processing it with any CAD software (depends of the file format and personal preferences) like MeshLab, Artec Studio etc
TitoPagnotto:
You dont need to do anything with collected data except saving it into .ply or .stl file and post-processing it
That's exactly what I meant. An Arduino can control the scanner, it can't do much with the data received beyond dumping it into some external storage.
You don't need to do anything with collected data except saving it into .ply or .stl file and post-processing it with any CAD software (depends on the file format and personal preferences) like 3D Scanner, MeshLab, Artec Studio etc
William Pattrix
With a 230.4 kBaud data rate, I don't think we are talking about an Arduino Nano here.
More a Raspberry Pi topic really. 
A Nano should be able to handle that baud rate - on its hardware Serial port, that is, which inconveniently is also the USB output...