Simple simulator for a 3DOF anthropomorphic arm

It's a simple example of a simulator for an anthropomorphic arm with 3DOF.

It's a simple GUI that calculates a random position of the end-effector, calculates the inverse kinematic and plot the joints' trajectory in a figure. You can send the positions to the arm's controller with the 'Send' button.

% For a correct execution, it must select the motors following this table:
% #servo_motor ------------ char to use for the motor selection
% 1 a
% 2 b
% 3 c