jumper caps means that both the motors are enabled by default, and the motors will rotate at maximum speed.

The ENA and ENB are used to enable both the motors. The +5 volt contact is connected with the Arduino’s 5 volts.Īs you can see this motor driver also have some male headers and are clearly labeled with ENA, IN1, IN2, IN3, IN4, and ENB. In this tutorial, I will use 12-volt power supply and a 5-volt power supply. If you are using a 5v Stepper motor then you can connect a 5-volt power supply with the +12v and GND contacts. This is not important that we always connect 12 volts, it depends on the voltage rating of the Stepper motor. The external power supply is connected with the +12v and GND contacts. This terminal block is labeled with +12v, GND, and +5v. This is where we connect the wires of the Stepper Motor. Now let’s take a closer look at the pinout of L298N module, this module has three terminal blocks, two-terminal blocks are labeled with OUT1, OUT2, OUT3, and OUT4. The UniPolar and BiPolar Stepper motor coil wires are connected with the OUT1, OUT2, OUT3, and OUT4. As this is a dual H-Bridge motor driver, it can be used to control the speed and direction of two DC motors at the same time.Īs you a stepper motor has 4 wires, so it means we can use the L298N motor driver to control one stepper motor. This motor driver can be used to control Dc motors that have voltages between 5 and 35volts, with a peak current of up to 2amps. This is the L298N dual H-bridge motor driver. Now let’s have a look at the pinout of the L298N Motor Driver. Let me tell you once again if you are using stepper motors with current ratings greater than 4amps then never use the l298N motor driver. J1 is the DC female power jack, this is where we connect the external 12v or 5v power supply and finally connect the VCC of the L298N motor driver with the Arduino’s 5volts. The enables pins of the l298n motor driver by default comes with the jumper caps, so make sure you remove the jumper caps and connect the enable pins with the Arduino’s pin number 6 and pin number 7. While the input pins of the l298N motor driver are connected with Arduino’s Pin number 8, 9, 10 and 11. So the unipolar stepper motor connection with the l298n motor driver is exactly the same as the bipolar stepper motor.Īs you can see in the circuit diagram the four wires of the stepper motor are connected with the out1, out2, out3, and out4. Well, the common wires are not connected. You might be thinking what about the unipolar motors as they have 6 wires. The L298N motor driver is basically designed for controlling simple dc motors in my previous tutorials, I used this motor driver for controlling the Robot…Īs the L298N motor driver has the ability to control 2 dc motors at the same, and as you know a stepper motor has 4 wires, so it means we can use the L298N motor driver to control a unipolar or bipolar stepper motor. As the stepper motors, I am using has current requirement less than 4amps so that’s why I decided to use the L298N motor driver.

The circuit diagram as you can see on the screen will remain the same for all the 3 stepper motors. if you want to learn how to make a schematic and PCB then watch my tutorial on the schematic designing and PCB designing, the video is available on my YouTube channel “Electronic Clinic”.Īs I said earlier regardless of the type and size of the stepper motors the basic working principle of all the stepper motors is exactly the same. This is the complete circuit diagram, designed in cadsoft eagle 9.1.0 version. I would appreciate your support in this way! Stepper Motor Arduino Circuit Diagram: I may make a commission if you buy the components through these links. Regardless of the type and size of the stepper motors, the basic working principle of all the steppers motors are exactly the same, In this Tutorial, I will practically show you how to use the same programs to control all the three stepper motors.ĮSP32 WiFi + Bluetooth Module (Recommended) Unipolar Stepper motors are further divided into two groupsīipolar stepper motors come with 4 wires. There are mainly two types of Stepper motors UniPolar and Bipolar Stepper Motors Speed and Position Control– Stepper Motors are used for precise positioning and that’s why they are used in Printers, CNC machines, CD ROMs, Robotics, Telescopes, toys and so on.

Arduino stepper motor position control