Servo Magazine (May 2008)

The Servo Buddy

By Jim Stewart    View Digital Edition  


This article introduces servo motor construction and operation, and describes an inexpensive circuit you can build to control a servo without a microcontroller. When I first started to build projects with R/C servo motors it became clear that, during construction, I needed a way to set the position of a servo manually. You can’t just grab the shaft and turn it, and writing software for a micro was overkill. Just a simple little circuit would do the job. That was the birth of the Servo Buddy....

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