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The DFRobot 4WD mobile Platform is intended for use with the DFRobot ROMEO All-in-one Controller and includes 4x motors, 4x wheels and a complete chassis with mounting hardware. The included second level allows you to add more electronics and define a modular layout. The rectangular hole allows for a servo to be attached and be used for several purposes like a movable camera or a robotic arm. The high-strength aluminum alloy body material provides flexibility in rapid movement particularly in outdoor grass, gravel, sand or sloped surface. Increased life span of the electronics and gears due to the chasis study structure. The 4WD Arduino Mobile Platform is also suitable for robot competitions and research related projects.
STEM Standard consists of 7 example robots and 21 weeks of educational training. Unlike simple, repetitive program training, STEM Standard explains from the very basic of programming to the advanced scientific principles in details (4 bar linkage mechanism, centrifugal force, centripetal force, sound element, differential gear, steering mechanism, etc), so that it allows you self-directed learning by solving various problems on your own.