Components
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||
IC1
|
L293D
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|
B1
|
5v
DC supply
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SW1,SW2
|
N.O.
Push Button
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R1,R2,R3,R4
|
100
omhs 1/4W
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|
R5.R6
|
10k
ohms 1/4W
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|
D1,D2,D3,D4
|
LED
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CN1
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To
pin13 (digital pin)
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ARDUINO
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CN2
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To
pin12 (digital pin)
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CN3
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To
pin11 (digital pin)
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CN4
|
To
pin10 (digital pin)
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CN5
|
To
Stepper motor(4 wire)
|
MOTOR
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CN6
|
To
pin2 (digital pin)
|
ARDUINO
|
CN7
|
To
pin3 (digital pin)
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CN8
|
To
A0(analog pin)
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|
CN9
|
To
Ground pin
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CN10
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To
5v pin
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There are 2 push buttons, one is for CW rotation and the other is for reverse.
Potentiometer is used to control the speed of the motor. Minimum speed is 0 and 100 for the maximum. If the speed is 0 the motor will not rotate even the push button is pressed. If the two push buttons were pressed the motor will not rotate as well.
Codes:
#include <Stepper.h>
int forward = 2;
int reverse = 3;
Stepper motor(200, 10,11,12,13);
void setup() {
pinMode(forward,INPUT);
pinMode(reverse,INPUT);
Serial.begin(9600);
}
void loop() {
int Speed = analogRead(A0);
int RPM = map(Speed, 0, 1023, 0, 100);
int f = digitalRead(forward);
int r = digitalRead(reverse);
if(f == 1 && r == 0 && RPM > 1){
motor.step(1);
motor.setSpeed(RPM);
delay(.01);
}
if(r == 1 && f== 0 && RPM > 1){
motor.step(-1);
motor.setSpeed(RPM);
delay(.01);
}
delay(5);
Serial.println(RPM);
}
