In this article we are going to interface unipolar and bipolar stepper motor and arduino using ULN2003 and L293D. The motor we are going to interface are MITSUMI M42SP-4NP stepping motor and 28BYJ-48 steeper motor
Here I explaining the working of Unipolar and Bipolar Stepper Motor with PIC 16F877A Microcontroller. Driving Bipolar Motor. Current Project / Post can also be found using: interfacing of stepper motor with pic; pic32 bipolar stepper motor. /* Stepper Motor Control - one step at a time This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the Arduino. The motor will step one step at a time, very slowly. Interfacing Stepper Motor with PIC Microcontroller. Interfacing Stepper Motor with PIC Microcontroller. Here I explaining the working of Unipolar and Bipolar Stepper Motor with PIC 16F877A Microcontroller. Interfacing Unipolar Stepper Motor with PIC Microcontroller using L293D Circuit Diagram. Driving a 2 phase 4 wire stepper motor. Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator. There is only one motor for my project. I need the shaft to turn like a pendulum back and forth periodically. This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the. Driving a Bipolar Stepper Motor with Arduino and ULN2803AG – tutorial where is explained how a bipolar stepper motor can be controlled using eight identical Darlington inverting amplifier circuits and an Arduino board. Check out this excellent video on youtube which visualizes driving stepper motor by energizing coils in the correct. Connecting 4 or 6 lead stepper motor in a bipolar configuration. Stepper motor projects are prone to problems because of all dependencies in the chain. Starting from hardware or power to bad configuration or just wrong. Bipolar stepper motors can be driven by using H-bridge circuit like SN754410 from Texas Instruments. One SN754410 IC can drive single bipolar stepper motor. In this example you may see two of them, so each motor is controlled via separate H-bridge IC.
An electric motor that rotates in a series of equal steps, each step controlled by a digital input signal, stepping motor are used in most electromechanical devices. Also called stepper motor. A stepper motor is an incremental motion machine i.e. the motor which turns in discrete movement (called the steps) is known as the stepper motor. Stepper motor does not rotate continuously as a conventional motor does.
The principle of operation of a stepper motor can be easily explained by considering a series of solenoids of electromagnetism arranged in a circle and an iron bar (rotor). When their solenoids are energized in sequence, the MMF developed in them interact with the iron bar (or rotor) and cause it to turn either in clockwise or counter-clockwise direction, depending upon the switching sequence.
IN this article we are controlling two stepper motor i.e. unipolar motor (28BYJ-48 stepper motor) and bipolar motor (MITSUMI M42SP-4NP).
Bipolar motor has two coils with four connectors where unipolar motor have four coils with five connectors. One end of each coil of unipolar motor is tied to VCC (say +5V) and other ends are taken out as shown in figure below. Before proceeding to circuit and programming lets identifies the pin of stepper motor.
Checkout other projects using stepper motor posted in bestengineeringprojects,com
There are two method of identification of pin of each coil
In this tutorial we are interfacing two different stepper motor thus we divide the description into two parts i.e. Unipolar Stepper motor interface with arduino and Bipolar stepper motor interfacing with arduino
The circuit of interfacing of bipolar stepper motor and arduino is shown in figure 1. This circuit is built around arduino uno and L293D. Four pin 4, 5, 12 and 13 is connected to ground where pin 1, 8, 9 and 16 is connected +5V supply of arduino. IN1, IN2, IN3 and IN4 is connected to arduino digital pin D11, D10, D9 and D8 respectively where output pin OUT1, OUT2, OUT3 and OUT4 are connected four of stepper motor as shown in figure 1.
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The circuit of interfacing of unipolar stepper motor and arduino is shown in figure 2. This circuit is built around arduino uno, ULN2003A, resistor and LED. ULN2003A is basically a Darlington Array IC and it consist seven NPN Darlington pair transistor capable of operating low voltage and low current motor. As it contains 7 NPN transistor thus 7 connector motor can be derived using this IC. Here we are driving unipolar stepper motor and it have four signal pin and a power supply pin. Thus, we need four arduino digital pin in order to drive this unipolar stepper motor.
The four-digital pin of arduino D11, D10, D9 and D8 is connected to 1B, 2B, 3B and 4B of IC ULN2003A respectively. The four-output pin of IC ULN2003A 1C, 2C, 3C and 4C are connected to one end of four coil of stepper motor as shown in above circuit diagram. Four LEDs are also connected to the pin of stepper motor through current limiting resistors. Pin 9 of IC ULN2003A is connected to common pin of coil.
Software Code: The software code of interfacing stepper motor with arduino is written in arduino programming language and compiled using arduino IDE.
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 | Stepper Motor Control - one revolution This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the Arduino. The motor should revolve one revolution in one direction, then Created 11 Mar. 2007 by Tom Igoe */ #include <Stepper.h> constintstepsPerRevolution=200;// change this to fit the number of steps per revolution // initialize the stepper library on pins 8 through 11: // set the speed at 60 rpm: // initialize the serial port: } voidloop(){ Serial.println('clockwise'); delay(500); // step one revolution in the other direction: myStepper.step(-stepsPerRevolution); } |
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 | Stepper Motor Control - one step at a time This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the Arduino. The motor will step one step at a time, very slowly. You can use this to test that you've got the four wires of your stepper wired to the correct pins. If wired correctly, all steps should be in the same direction. Use this also to count the number of steps per revolution of your motor, if you don't know it. Then plug that number into the oneRevolution by Tom Igoe */ #include <Stepper.h> constintstepsPerRevolution=200;// change this to fit the number of steps per revolution // initialize the stepper library on pins 8 through 11: intstepCount=0;// number of steps the motor has taken voidsetup(){ Serial.begin(9600); // step one step: Serial.print('steps:'); stepCount++; } |
Note: Arduino code for both circuit is same and no need to modify.