joint-wave.ino

Controls a 4-jointed fish, tested on the Love (1st iteration) fish. A joint is moved every 125ms, starting from the first (head) joint, then the second joint, third joint, and the tail.

Variable:

	NUM_JOINTS: number of joints in the system
	joint_directions: each bit of the integer represents a different joint.

Returns:

  Angle between vector defined by pt1 and pt2 from horizontal.
  -180 < theta < 180

See Also:

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atan2d