Planetary Gears (Epicyclic Gears) is a gear system consisting of one or more outer gears (planet gears), revolving about a central (sun gear).
Camellia Café developed a high performance, economical and practical Controller with ARM technology.
With espresso controller, 4 servo motors are able to be controlled at the same time.
With an advanced CAPPUCCINO controller, 8, LEGO motors, are able to be controlled at the same time.
It has a good accuracy at speed adjustment, preset time running and preset angle running for EV3 motors. Clockwise or counter clockwise running is also OK.
Other LEGO motors can also be controlled only except for preset angle running mode.