so we need another controller to drive it, so the ULN2003 driver IC is the best choice.

The 28BYJ-48 stepper motor can’t be controlled by Arduino directly, because it’s a high current consumed. The file down below is the 28-BYJ48 stepper motor datasheet you can download it.Ģ8BYJ-48 Stepper Motor Datasheet Download ULN2003 Motor Driver Stepper Motor Specifications Stepper Motor Datasheetĭo you want to learn more details? You can read the stepper motor datasheet. If you want to know more technical specifications for the 28BYJ-48 stepper motor take a look at the table down below. The speed variation ratio for this module is (1/64), which means there are 2048 steps required to complete one full rotation of the shaft which is called steps per revolution, We have got this number by multiplying 32 and 64 (32×64=2048). The speed variation ratio is one of the most important aspects you need to consider when using a 28BYJ-48 stepper motor, this motor can rotate 32 steps per revolution (11.25° for each step). The 28BYJ-48 stepper motor consists of two coils, each of these coils has a center tap, and these 2 center taps are connected internally. 28BYJ-48 Stepper Motor PinoutĬoil 1 – Coil 4: These 4 coils are used to control the logical sequence (step sequence).ĥV: This pin is used to supply the stepper motor by 5V.

Let’s take a look at the 28BYJ-48 stepper motor pinout in this picture down below which have a 5-wire.

The 28BYJ-48 stepper motor is commonly used with a ULN2003A driver which we will talk about it in this tutorial. One of the main characteristics of this Motor is the speed variation ratio (1/64) which we will talk about it after a while, and this motor is a uni-polar stepper motor with (34.3 mN.m) torque and (15 RPM) speed at 5V rated voltage. There are many types of stepper motors but in this tutorial, we will talk about the 28BYJ-48 stepper motor which is a small, low-cost stepper motor that is used in many small-scale robotics and Arduino projects. What Is The Main Purpose Of A Stepper Motor?Ī Stepper motor is a DC motor that rotates in discrete small (steps), this type of motor is recognized as having high torque at low speed in addition it can determine positioning in a very accurate way which makes it the ideal choice for many applications: robotics, CNC machines, automation, 3D printer, and DVD players.

Interfacing Stepper Motor With Arduino Usnig ULN2003 Motor Driver.

Fritzing stepper motor