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In this lesson we learn how to use mini stepper motor 28BYJ-48 for our project. I am presenting with 8 projects so you can use it in almost any applicaiton. In the video, I have explained the code, shown full wiring diagram and how connect the wires, push buttons and bread board.
In Project 3 STPB-1 we control stepper motor using push buttons. We have 3 push buttons. one for clockwise (CW), the second for counterclockwise (CCW) and one for Stoping the motor.
/*
* Lesson 107-3: Controlling stepper motor using 3 push buttons.
We have 3 push buttons. one for clockwise (CW), the second for counterclockwise (CCW) and one for Stoping the motor.
In this lesson we learn how to use mini stepper motor 28BYJ-48 for our project. I am presenting with 8 projects
so you can use it in almost any applicaiton. In the video, I have explained the code, shown full wiring diagram and
how connect the wires, push buttons and bread board.
Project 2: we will push different keys on keyboard and control motor
Project 1: Running motor
Project 2: Controlling stepper motor from Serial Monitor
Project 3: Controlling stepper motor using push button STPB-1 (this code)
Project 4: Controlling using push button STPB-2 keep pressing
Project 5: One Revolution using push button STPB-3
Project 6: Push button Any Angle and speed STPB-4
Project 7: Using multiple buttons to any angles STPB-5 angle, speed and direction
Project 8: Controlling stepper motor using potentiometer
* Watch Video instrution for this code:https://youtu.be/TQ7R2bY-MWU
*
* This code is part of Arduino Step by Step Course which starts here: https://youtu.be/-6qSrDUA5a8
*
* for library of this code visit http://robojax.com/
*
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content like this. Make a donation using PayPal by credit card https://bit.ly/donate-robojax
* Written by Ahmad Shamshiri for Robojax Robojax.com
* on Feb 20, 2019 at 19:34 in Ajax, Ontario, Canada
* * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.*
* This code has been download from Robojax.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
int Pin1 = 10;//IN1 is connected to 10
int Pin2 = 11;//IN2 is connected to 11
int Pin3 = 12;//IN3 is connected to 12
int Pin4 = 13;//IN4 is connected to 13
int switchCW =2;//define input pin for CW push button
int switchStop=3;//define input pin for Stop push button
int switchCCW =4;//define input pin for CCW push button
int pole1[] ={0,0,0,0, 0,1,1,1, 0};//pole1, 8 step values
int pole2[] ={0,0,0,1, 1,1,0,0, 0};//pole2, 8 step values
int pole3[] ={0,1,1,1, 0,0,0,0, 0};//pole3, 8 step values
int pole4[] ={1,1,0,0, 0,0,0,1, 0};//pole4, 8 step values
int poleStep = 0;
int dirStatus = 3;// stores direction status 3= stop (do not change)
void setup()
{
pinMode(Pin1, OUTPUT);//define pin for ULN2003 in1
pinMode(Pin2, OUTPUT);//define pin for ULN2003 in2
pinMode(Pin3, OUTPUT);//define pin for ULN2003 in3
pinMode(Pin4, OUTPUT);//define pin for ULN2003 in4
pinMode(switchCW,INPUT_PULLUP);// CW push button pin as input
pinMode(switchStop,INPUT_PULLUP);//Stop push button pin as input
pinMode(switchCCW,INPUT_PULLUP);//CCW push button pin as input
}
void loop()
{
if(digitalRead(switchCCW) == LOW)
{
dirStatus =1;
}else if(digitalRead(switchCW) == LOW)
{
dirStatus = 2;
}else if(digitalRead(switchStop) == LOW)
{
dirStatus =3;
}
if(dirStatus ==1){
poleStep++;
driveStepper(poleStep);
}else if(dirStatus ==2){
poleStep--;
driveStepper(poleStep);
}else{
driveStepper(8);
}
if(poleStep>7){
poleStep=0;
}
if(poleStep<0){
poleStep=7;
}
delay(1);
}// loop
void driveStepper(int c)
{
digitalWrite(Pin1, pole1[c]);
digitalWrite(Pin2, pole2[c]);
digitalWrite(Pin3, pole3[c]);
digitalWrite(Pin4, pole4[c]);
}
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