Control Stepper motor 28BYJ-48 with ULN2003 for Arduino
The source code for stepper motor 28BYJ-48 with ULN2003 for Arduino
- Control Stepper motor 28BYj-48 with Arduino and 3 push buttons
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- 5V 28BYJ-48 Motor Datasheet(pdf).
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//original source is http://www.geeetech.com/wiki/index.php/Stepper_Motor_5V_4-Phase_5-Wire_%26_ULN2003_Driver_Board_for_Arduino
// Update by Ahmad Shamshiri for RoboJax.com
// Published on March 27, 2017 in Aajx, ON, Canada.
/*
*
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* * 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 .
*/
int Pin1 = 10;
int Pin2 = 11;
int Pin3 = 12;
int Pin4 = 13;
int _step = 0;
boolean dir = true;// false=clockwise, true=counter clockwise
int count=0;
void setup()
{
pinMode(Pin1, OUTPUT);
pinMode(Pin2, OUTPUT);
pinMode(Pin3, OUTPUT);
pinMode(Pin4, OUTPUT);
}
void loop()
{
switch(_step){
case 0:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, HIGH);
break;
case 1:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, HIGH);
digitalWrite(Pin4, HIGH);
break;
case 2:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, HIGH);
digitalWrite(Pin4, LOW);
break;
case 3:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, HIGH);
digitalWrite(Pin4, LOW);
break;
case 4:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, LOW);
break;
case 5:
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, LOW);
break;
case 6:
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, LOW);
break;
case 7:
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, HIGH);
break;
default:
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
digitalWrite(Pin4, LOW);
break;
}
if(dir){
_step++;
}else{
_step--;
}
if(_step>7){
_step=0;
}
if(_step<0){
_step=7;
}
delay(1);
}