Hello eveyrbody,
I am new in Arduino world and actually I have just ordered my arduino uno r3 yesterday and waiting for the shipment. I also started reading "Massimo Banzi's Getting started with Arduino" and related to the LED project at chapter 4 I found some clues. After reading some projects which I found on internet I have some ideas however as a newbee I have bunch of questions to ask
I want to control a 4 wire stepper motor (mitsumi M42SP-6NK) with L293D. I have build my motor shiled based pn the project(picture) below with L293D instead.
What I want to do is controlling the stepper motor motion with two push buttons. This is how the whole thing should work...
4 digital pins of arduino will be assigned as output pins and will be connected to the input pins of L293D(pins 2,7,10,15),
2 digitalpins of arduino will be connected to the 2 push buttons.
1.when I press one button the motor should turn 8 steps in forward (or clockwise) direction and it should stop
2.when I press the other button the motor should turn 8 steps in counter clockwise direction and stop.
as the code I thought something like this (at least for the first steps)
So I am open for all ideas and modifications.
Regadrs
Özgür
I am new in Arduino world and actually I have just ordered my arduino uno r3 yesterday and waiting for the shipment. I also started reading "Massimo Banzi's Getting started with Arduino" and related to the LED project at chapter 4 I found some clues. After reading some projects which I found on internet I have some ideas however as a newbee I have bunch of questions to ask
I want to control a 4 wire stepper motor (mitsumi M42SP-6NK) with L293D. I have build my motor shiled based pn the project(picture) below with L293D instead.
What I want to do is controlling the stepper motor motion with two push buttons. This is how the whole thing should work...
4 digital pins of arduino will be assigned as output pins and will be connected to the input pins of L293D(pins 2,7,10,15),
2 digitalpins of arduino will be connected to the 2 push buttons.
1.when I press one button the motor should turn 8 steps in forward (or clockwise) direction and it should stop
2.when I press the other button the motor should turn 8 steps in counter clockwise direction and stop.
as the code I thought something like this (at least for the first steps)
Code:
#include <Stepper.h>
int in1Pin = 12; // to the pin15 of L293D
int in2Pin = 11; // to the pin10 of L293D
int in3Pin = 10; // to the pin7 of L293D
int in4Pin = 9; // to the pin2 of L293D
const int BUTTONCW =7; // button for clockwise rotation
const int BUTTONCCW = 8; // botton for counter clockwise rotation
int val1 = 0; // val will be used to store the state
// of the input pin clockwise
int old_val1 = 0; // this variable stores the previous
// value of "val1" clockwise
int val2 = 0; // val will be used to store the state
// of the input pin counter clockwise
int old_val2 = 0; // this variable stores the previous
// value of "val2" counter clockwise
int state1 = 0; // 0 = motor stands still and 1 = motor rotates clockwise
int state2 = 0; // 0 = motor stands still and 1 = motor rotates counter clockwise
Stepper motor(48, in1Pin, in2Pin, in3Pin, in4Pin);
void setup()
{
pinMode(in1Pin, OUTPUT);
pinMode(in2Pin, OUTPUT);
pinMode(in3Pin, OUTPUT);
pinMode(in4Pin, OUTPUT);
pinMode(BUTTONCW, INPUT);
pinMode(BUTTONCCW, INPUT);
motor.setSpeed(8);
}
void loop ()
{
// check if there was a transition
val1 = digitalRead(BUTTONCW); // read input value and store it for clockwise
if ((val1 == HIGH) && (old_val1 == LOW)){
state1 = 1 - state1;
delay(1000); // to avouid button bouncing
if ((val2 == HIGH) && (old_val2 == LOW)){
state2 = 1 - state2;
delay(1000); // to avouid button bouncing
}
old_val1 = val1; // val1 is now old, let's store it
old_val2 = val2; // val2 is now old, let's store it
void loop()
{
if (state1 == HIGH)
{
motor.step(steps ,forward);
// I SUPPOSE THE HELP IS NEEDED AFTER OR AROUND THIS POINT
}
}So I am open for all ideas and modifications.
Regadrs
Özgür