Hi i’m new at the forum i’m 23 and live in Sweden!
I need help!
Did build a slider for my camera with a stepper motor and a controller.
Now to my problem i want to unsold-er the buttons and the pots and use blynk instead.
and want the help to convert the code.
Parts i used:
Adafruit Feather 32u4 Bluefruit LE (because i knew i wanted a wireless and more compact system at some point)
Stepper motor SM-42BYG011-25
Driver:
HALJIA EasyDriver Shield Stepping Stepper Motor Driver A3967 for Arduino
My code as it runs today:
/*
Stepper Motor Single Channel Manual Controller
language: Wiring/Arduino
This program drives a single bi-polar stepper motor using an EasyDriver
stepper motor controller from SparkFun.
It takes input from a set of switches and potentiometers.
The goal is to create smooth motion of the steppper motor without having a
PC attached to the Arduino.
The motor moves 1600 steps in one rotation. (8th step microstepping on a 200 s/r motor)
Created 08/18/2010
by Brian Schmalz
Version 0.2 01/30/2011 Added accel/decl
Version 0.3 10/09/2011 Fixed two bugs found by Daniel Schweinert:
1) Speed Pot not working during Rotate Left or Rotate Right moves
2) When Goto A or Goto B is pressed after using Rotate Left or Right, motor moves in the
wrong directly for a little bit before moving in the right direction.
*/
#include <AccelStepper.h>
// Define some steppers and the pins the will use
AccelStepper stepper1(1, 12, 11);
#define stepPin 12
#define dirPin 11
#define ledPin 13
#define rotateLeftPin 10
#define rotateRightPin 9
#define savePositionAPin 6
#define savePositionBPin 5
#define gotoPositionAPin 3
#define gotoPositionBPin 2
#define maxSpeedPin 0
#define accelPin 1
// Set this to zero if you don't want debug messages printed
#define printDebug 0
// These are the constants that define the speed associated with the MaxSpeed pot
#define MAX_SPEED 3000 // At 200 s/r and 1/8th microstepping, this will be 333 rev/minute
#define MIN_SPEED 0.1 // At 200 steps/rev and 1/8th microstepping, this will be 1 rev/minute
// Change this value to scale the acceleration pot's scaling factor
#define ACCEL_RATIO 1
int buttonState = 0;
int stepNumber = 0;
int curSpeed = 100;
int dir = 0;
int maxSpeed = 0;
int accel = 0;
long savedPosA = 0;
long savedPosB = 0;
int loopCtr = 0;
float fMaxSpeed = 0.0;
float fStepsPerSecond = 0.0;
void setup()
{
pinMode(stepPin, OUTPUT);
pinMode(dirPin, OUTPUT);
pinMode(ledPin, OUTPUT);
pinMode(rotateLeftPin, INPUT);
pinMode(rotateRightPin, INPUT);
pinMode(savePositionAPin, INPUT);
pinMode(savePositionBPin, INPUT);
pinMode(gotoPositionAPin, INPUT);
pinMode(gotoPositionBPin, INPUT);
if (printDebug)
{
// Initialize the Serial port
Serial.begin(9600);
}
// blink the LED:
blink(2);
stepper1.setMaxSpeed(3000.0);
stepper1.setAcceleration(600.0);
// Grab both speed and accel before we start
maxSpeed = analogRead(maxSpeedPin);
// Do the math to scale the 0-1023 value (maxSpeed) to
// a range of MIN_STEPS_PER_SECOND to MAX_STEPS_PER_SECOND
fMaxSpeed = maxSpeed / 1023.0;
fStepsPerSecond = MIN_SPEED + (fMaxSpeed * (MAX_SPEED - MIN_SPEED));
if (fStepsPerSecond > 3000)
{
fStepsPerSecond = 3000;
}
accel = analogRead(accelPin)/ACCEL_RATIO;
}
void loop()
{
// First, we need to see if either rotate button is down. They always take precidence.
if(digitalRead(rotateLeftPin))
{
stepper1.setSpeed(-fStepsPerSecond);
while(digitalRead(rotateLeftPin))
{
CheckPots();
stepper1.runSpeed();
stepper1.setSpeed(-fStepsPerSecond);
}
}
else if (digitalRead(rotateRightPin))
{
stepper1.setSpeed(fStepsPerSecond);
while(digitalRead(rotateRightPin))
{
CheckPots();
stepper1.runSpeed();
stepper1.setSpeed(fStepsPerSecond);
}
}
// Go see if we need to update our analog conversions
CheckPots();
// Check to see if user is trying to save position A or B
if(digitalRead(savePositionAPin))
{
savedPosA = stepper1.currentPosition();
if (printDebug)
{
Serial.print("Saved A at :");
Serial.println(savedPosA);
}
while(digitalRead(savePositionAPin));
}
if(digitalRead(savePositionBPin))
{
savedPosB = stepper1.currentPosition();
if (printDebug)
{
Serial.print("Saved B at :");
Serial.println(savedPosB);
}
while(digitalRead(savePositionBPin));
}
// Check to see if the user wants to go to position A or B
if (digitalRead(gotoPositionAPin))
{
if (printDebug)
{
// Yup, let's go to position A
Serial.print("cur pos = ");
Serial.println(stepper1.currentPosition());
Serial.print("Going to A = ");
Serial.println(savedPosA);
Serial.print("Speed = ");
Serial.println(fStepsPerSecond);
Serial.print("Accel = ");
Serial.println(accel);
}
stepper1.setAcceleration(0);
stepper1.runToNewPosition(stepper1.currentPosition());
stepper1.setMaxSpeed(fStepsPerSecond);
stepper1.setAcceleration(accel);
stepper1.runToNewPosition(savedPosA);
if (printDebug)
{
Serial.print("new pos = ");
Serial.println(stepper1.currentPosition());
}
while(digitalRead(gotoPositionAPin));
}
else if (digitalRead(gotoPositionBPin))
{
// Yup, let's go to position B
if (printDebug)
{
Serial.print("cur pos = ");
Serial.println(stepper1.currentPosition());
Serial.print("Going to B = ");
Serial.println(savedPosB);
Serial.print("Speed = ");
Serial.println(fStepsPerSecond);
Serial.print("Accel = ");
Serial.println(accel);
}
stepper1.setAcceleration(0);
stepper1.runToNewPosition(stepper1.currentPosition());
stepper1.setMaxSpeed(fStepsPerSecond);
stepper1.setAcceleration(accel);
stepper1.runToNewPosition(savedPosB);
if (printDebug)
{
Serial.print("new pos = ");
Serial.println(stepper1.currentPosition());
}
while(digitalRead(gotoPositionBPin));
}
}
// Blink the reset LED:
void blink(int howManyTimes)
{
int i;
for (i=0; i < howManyTimes; i++)
{
digitalWrite(ledPin, HIGH);
delay(200);
digitalWrite(ledPin, LOW);
delay(200);
}
}
void CheckPots(void)
{
loopCtr++;
// Only read these once in a while because they take a LONG time
if (loopCtr == 100)
{
maxSpeed = analogRead(maxSpeedPin);
// Do the math to scale the 0-1023 value (maxSpeed) to
// a range of MIN_STEPS_PER_SECOND to MAX_STEPS_PER_SECOND
fMaxSpeed = maxSpeed / 1023.0;
fStepsPerSecond = MIN_SPEED + (fMaxSpeed * (MAX_SPEED - MIN_SPEED));
if (fStepsPerSecond > 3000)
{
fStepsPerSecond = 3000;
}
}
// Read in the acceleration analog value
// This needs to be scaled too, but to what?
if (loopCtr >= 200)
{
accel = analogRead(accelPin)/ACCEL_RATIO;
loopCtr = 0;
}
}
I want to have this buttons and slider.
and really need your guys help!