MOTTOR SERVO SG90

Servo motors are high torque motors which are commonly used in robotics and several other applications due to the fact that it’s easy to control their rotation. Servo motors have a geared output shaft which can be electrically controlled to turn one (1) degree at a time. For the sake of control, unlike normal DC motors, servo motors usually have an additional pin asides the two power pins (Vcc and GND) which is the signal pin. The signal pin is used to control the servo motor, turning its shaft to any desired angle.

we will be using the popular SG90 servo motor and our goal will be to rotate the servo motor from one end to the other.

Servo’s have high current requirement so when using more than one servo motor with the Arduino, it is important to connect their power connections to an external power supply as the Arduino may not be able to source the current needed for the servo. Since we will be using just one servo in this tutorial its fine to power it with an Arduino.

REQUIRED COMPONENTS

The following components are required to build this project:

1. SG90 Servo
2. Cheap Arduino Uno
3. Wires
4. Breadboard