So, got the Vilros ultimate starter pack, worked thru the 10 examples with the breadboard to sort of get an understanding for how each function worked, tweaking an example code here and there...now for my real trouble.....
Now end goal is to run a Slider Dolly along a track with a Stepper motor turning a pulley gear that is attached to a pulley belt below that sits in the middle of the tracks and below the dolly. I've got the dolly and track made, just need to rig this Arduino and motor to the dolly now.
I've got an Arduino Uno with a Seeed Motor Shield V2 ontop.
Currently, I've got the Demo #2-link up and running, with my stepper motor.
The code that I've used is in that link, but I'll provide below as well.
Can somebody help me work thru this adding in a switch and potentiometer to this setup?
I'd like to control how slow the slider can track
I'd like to control the slider on and off / change direction. (maybe 2 switches?)
Can I add this many inputs onto a Seeed Motor Shield? Where would I add that code into my current stepper motor demo example? I think I've gotta pull a bunch of what is already in there out?
Thanks for your help in pointing me the right direction.
// Demo function:The application method to drive the stepper motor.
// Hareware:Stepper motor - 24BYJ48,Seeed's Motor Shield v2.0
// Author:Frankie.Chu
// Date:20 November, 2012
#define MOTOR_CLOCKWISE 0
#define MOTOR_ANTICLOCKWISE 1
/******Pins definitions*************/
#define MOTORSHIELD_IN1 8
#define MOTORSHIELD_IN2 11
#define MOTORSHIELD_IN3 12
#define MOTORSHIELD_IN4 13
#define CTRLPIN_A 9
#define CTRLPIN_B 10
const unsigned char stepper_ctrl[]={0x27,0x36,0x1e,0x0f};
struct MotorStruct
{
int8_t speed;
uint8_t direction;
};
MotorStruct stepperMotor;
unsigned int number_of_steps = 200;
/**********************************************************************/
/*Function: Get the stepper motor rotate */
/*Parameter:-int steps,the total steps and the direction the motor rotates.*/
/* if steps > 0,rotates anticlockwise, */
/* if steps < 0,rotates clockwise. */
/*Return: void */
void step(int steps)
{
int steps_left = abs(steps)*4;
int step_number;
int millis_delay = 60L * 1000L /number_of_steps/(stepperMotor.speed + 50);
if (steps > 0)
{
stepperMotor.direction= MOTOR_ANTICLOCKWISE;
step_number = 0;
}
else if (steps < 0)
{
stepperMotor.direction= MOTOR_CLOCKWISE;
step_number = number_of_steps;
}
else return;
while(steps_left > 0)
{
PORTB = stepper_ctrl[step_number%4];
delay(millis_delay);
if(stepperMotor.direction== MOTOR_ANTICLOCKWISE)
{
step_number++;
if (step_number == number_of_steps)
step_number = 0;
}
else
{
step_number--;
if (step_number == 0)
step_number = number_of_steps;
}
steps_left --;
}
}
void initialize()
{
pinMode(MOTORSHIELD_IN1,OUTPUT);
pinMode(MOTORSHIELD_IN2,OUTPUT);
pinMode(MOTORSHIELD_IN3,OUTPUT);
pinMode(MOTORSHIELD_IN4,OUTPUT);
pinMode(CTRLPIN_A,OUTPUT);
pinMode(CTRLPIN_B,OUTPUT);
stop();
stepperMotor.speed = 25;
stepperMotor.direction = MOTOR_CLOCKWISE;
}
/*******************************************/
void stop()
{
/*Unenble the pin, to stop the motor. */
digitalWrite(CTRLPIN_A,LOW);
digitalWrite(CTRLPIN_B,LOW);
}
void setup()
{
initialize();//Initialization for the stepper motor.
}
void loop()
{
step(200);//Stepper motors rotate anticlockwise 200 steps.
delay(1000);
step(-200);//Stepper motors rotate clockwise 200 steps.
delay(1000);
}