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Hobby servos are a wonderfully simple way to add precision motion to any project. From the tiny micro servos used to pilot R/C aircrafts to the jumbo class servos when you really need some torque, if you learn to control one, you can control them all. Here we take a look at the three main servo sizes, and a couple of quick and simple builds to demonstrate what servos can do.
![](https://i.ytimg.com/vi/vbAZdQGTA0s/maxresdefault.jpg)