Example code for moving to position

[NikolasE]

so far, there is only the demo to move the arm in a circle but no demo how to move it to a specific position.

[maxosprojects]

Will take Mike's IK https://github.com/mikef522/open-dobot-gui and create a simple example.
To have an example sooner I will have to simplify it:

1. it will not use accelerometers and would assume predefined initial pose
2. it will not move in a straight line, but only to get end effector from point A to point B driving each motor as fast as possible.

In order to make the example complete it would be required to:

1. write up accelerometers calibration instructions and implement some helper code to make calibration procedure simple
2. in code, slice the trajectory into segments, taking into account acceleration/deceleration, to make the end effector move in a straight line from point A to point B

As a bonus, provide an example of arm doing some fancy trajectory, like continuously drawing a complex smooth figure in the air (e.g. number 8 while smoothly changing the plane).

Needless to say that proper example would take a bit more time. So, I'm planning to make a simple one first for 0.3.0 and then proper one for 0.4.0, unless someone helps.

Currently I'm fixing the protocol to enable command buffer and do crc properly.

Hey Nikolas, like Max said, I wrote up a python gui app that does just that (see the repository Max linked to). I uploaded some videos that give a quick demo and explanation here:

Demo videos here:
Set up and move to point demo: https://www.youtube.com/watch?v=FjHylzeWPgg
Inverse Kinematics Quick Explanation: https://youtu.be/Nsgcq8Uz_Vc
Inverse Kinematics C++ 3D simulation Demo: https://youtu.be/5oExIlkn5EA

I am using ramps though. I look forward to seeing Max's improvements!