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The Unofficial LEGO Technic Builder's Guide, 2nd Edition by Pawel Sariel Kmiec

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14LEGO Power Functions system

The LEGO Power Functions system (or PF for short), introduced in 2007, is a combination of LEGO elements that allows you to motorize your constructions, equip them with lights, move them with linear actuators, and, above all, control them remotely. In this chapter, we will learn how this system works and how its elements can be combined.

The core parts of the Power Functions system can be divided into three groups: power supplies, control elements, and motors. There are several types of motors in the Power Functions system, and all of them are described in Chapter 13. The Power Functions system allows us to control motors with more flexibility, offering fine-grained control of speed and the ability to control multiple ...

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