The ROBOTIS Dream II Level 4 is an expansion kit for DREAM Levels 1,2, & 3.
ROBOTIS DREAM Level 4 advances your knowledge of robotics.
Level 4 proceeds to expand upon the basics of how a robot moves by the use of servo motors to introduce different modes of motion such as wheel & joint based motion.
Level 4 builds upon Level 3 to develop a higher level of understanding or robotic principles such as the principles of pulleys, utilization of robot peripherals and programming.
Comes with 12 chapters and 12 example robots, with instructions on assembly, applications of scientific principles and problem solving.
Once you are done with Level 4 you can move on to ROBOTIS DREAM Level 5 Kit.