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The AFMotor motor expansion board is one of the most popular expansion boards for the Arduino platform, known for its convenient connections and rich functionality. Many friends enjoy using this motor expansion board to drive the motors of robots or smart cars.

In this tutorial, we will introduce how to control general model DC motors, 28BYJ-48 stepper motors, and servos (servo motors) using the Arduino Uno development board with the AFMotor motor expansion board.

The AFMotor motor expansion board has the following functional features:

1. Can drive up to 4 general model DC motors

2. Can drive up to 2 28BYJ-48 stepper motors

3. Can drive up to 2 servos (servo motors)

Before using the AFMotor motor expansion board to drive motors, you need to install the AFMotor library in the Arduino IDE. Here, we recommend two motor libraries. One is essential to install, and the other can be chosen according to your needs.

The essential library is the AFMotor library. This library was specifically written by the development team Adafruit for the AFMotor expansion board. Its advantage is that it is very simple to use, but its functionality is relatively basic. If you are just driving DC model motors, then this AFMotor library is sufficient.

However, if you also want to use the AFMotor expansion board to drive 28BYJ-48 stepper motors, while the AFMotor library can also achieve this functionality, it is too simplistic. Therefore, we recommend using the AccelStepper library to control the stepper motors.