![]() ![]() The signal wire is fed a pulse every 20 milliseconds with the width of that pulse, normally 1-2 ms, used to determine the position of the servo. Three color coded wires are used to power and control a servo: power (red or brown), ground (black or brown), and signal (white, orange, or yellow). The standard sizes are generally categorized as micro, standard, and large, but some manufacturers provide additional sizes. The larger the size, the more torque it produces, along with the associated extra power consumption. The shaft of the servo motor is toothed so that items, such as gears, wheels, levers (horns), etc. Servos are often used in radio-controlled vehicles and small robots for steering and other functions. It is constructed with a small DC motor, a gearing system that reduces the motor’s speed and increases torque, position control circuitry, and a potentiometer to provide position feedback. The typical small servo motor, or simply servo, is an electromechanical device that translates electronic signals into distinct angular positions of 0-180 degrees on a motor’s shaft. Small Servo Motor (available on Adafruit and SparkFun).3 x Male/Male Jumper Wires (available on Adafruit and Arrow).Arduino Uno (Rev3 available on Arduino and SparkFun WiFi Rev2 on Arduino and Digi-Key) With Compatible USB Cable.Alligator Clip Test Leads (recommended, available on Adafruit and SparkFun).5-6 V DC / 2 A External Power Supply (recommended).Linux, macOS, Or Windows Based Computer With A USB Port.The resources created for this tutorial are available on GitHub for your reference. If you are new to Arduino, or would just like to refresh your knowledge, please see our Blink: Making An LED Blink On An Arduino Uno tutorial before proceeding with this one. It will also demonstrate a variety of methods you can use to control a servo.Ī basic understanding of electronics and programming is expected along with some familiarity with the Arduino platform. This tutorial will show you how to connect, configure, calibrate, and control a servo motor with an Arduino board. Sweeping The Servo Through Given Angles. ![]() Setting Servo Positions Based On User Input.Skill Level: Intermediate Table Of Contents ![]()
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