I finally got my microsteppinboard from magenta2000.
First tests are done and working great, 1/2, 1/4, 1/8 and 1/16 steps.
200 steps stepper motor is running quite smooth with 3200 steps/r =)
(i found many good stepper motors from electric trash from my work, shame to waste those).
Here is video (YouTube), sorry about bad light but hopefully something is seen and hear.
Arduino is running my own code what includes some accelerations and deaccelerations, but it has more to improve.
here is the code
// By Timo Heimonen
// Magenta Microstepping board SLA7062M & Arduino Mega & Stepper motor
#define MAXSPEED 500 // microseconds between steps = max speed control
#define ACCDEACC 1600 // accelration and deacceleration steps, also min speed
int DirPIN = 8; // DIRECTION PIN
int StepPIN = 9; // CLOCK PIN
int SyncPIN = 10; // SYNC PIN
long counter=0;
void setup()
{
pinMode(DirPIN, OUTPUT);
pinMode(StepPIN, OUTPUT);
pinMode(SyncPIN, OUTPUT);
digitalWrite(SyncPIN, HIGH);
}
void motorstep(long howmany,int direc)
{
if(direc==0)
{
digitalWrite(DirPIN, HIGH);
delayMicroseconds(5);
}
if(direc==1)
{
digitalWrite(DirPIN, LOW);
delayMicroseconds(5);
}
int i=ACCDEACC;
counter=0;
while(counter<howmany)
{
if(counter<ACCDEACC)
{
if(i>MAXSPEED)
{
i=i-1;
}
}
if(howmany-counter<ACCDEACC)
{
if(i<ACCDEACC);
{
i=i+1;
}
}
digitalWrite(SyncPIN, LOW);
digitalWrite(StepPIN, HIGH);
delayMicroseconds(5);
digitalWrite(StepPIN,LOW);
digitalWrite(SyncPIN, HIGH);
delayMicroseconds(i);
counter=counter+1;
}
}
void loop()
{
motorstep(3000,1);
delay(100);
motorstep(10000,0);
delay(100);
motorstep(400,1);
delay(100);
motorstep(200,0);
delay(100);
motorstep(200,1);
delay(100);
motorstep(10000,1);
delay(100);
motorstep(400,0);
delay(100);
}
EDIT: Code updated, dunno if i'm using SYNC correctly
Code update, finished reading SLA7062M datasheet and now sync and home pins are working way they should.
New video Here (YouTube).
Could not edit original post anymore so heres a new code.
// By Timo Heimonen
// Magenta Microstepping board SLA7062M & Arduino Mega & Stepper motor
#define MAXSPEED 450 // microseconds between steps = max speed control
#define ACCDEACC 1600 // accelration and deacceleration steps, also min speed
#define DEBUG 0 // 1 = Serial debug ON, 0 = Serial debug OFF
int DirPIN = 8; // DIRECTION PIN
int StepPIN = 9; // CLOCK PIN
int HomePIN = 10; // HOME PIN
int SyncPIN = 11; // Sync PIN
int LedPIN = 13; // Arduino Led
int stephome=0;
unsigned long counter=0;
void setup()
{
if(DEBUG == 1)
{
Serial.begin(115200);
}
pinMode(DirPIN, OUTPUT);
pinMode(StepPIN, OUTPUT);
pinMode(SyncPIN, OUTPUT);
pinMode(HomePIN, INPUT);
pinMode(LedPIN, OUTPUT);
}
void motorstep(unsigned long howmany,int direc)
{
if(direc==0)
{
digitalWrite(DirPIN, HIGH);
}
if(direc==1)
{
digitalWrite(DirPIN, LOW);
}
int i=ACCDEACC;
counter=0;
while(counter<howmany)
{
if(counter<ACCDEACC)
{
if(i>MAXSPEED)
{
i=i-1;
}
}
if(howmany-counter<ACCDEACC)
{
if(i<ACCDEACC);
{
i=i+1;
}
}
digitalWrite(StepPIN, HIGH); // GIVE HIGH EDGE (CLOCK) TO SLA7062M
delayMicroseconds(5); // WAIT LITTLE BIT BEFORE GET IT DOWN
digitalWrite(StepPIN,LOW);
delayMicroseconds(40); // WE MUST WAIT THAT HOME SIGNAL HAS TIME GET UP
stephome = digitalRead(HomePIN); // ARE WE AT "HOME"
if (stephome == HIGH)
{
digitalWrite(SyncPIN, HIGH); // IF SO, LETS SYNC
digitalWrite(LedPIN, HIGH);
if(DEBUG == 1)
{
Serial.write("HOME HIGH, SYNC HIGH");
Serial.println();
}
}
else
{
digitalWrite(SyncPIN, LOW);
digitalWrite(LedPIN, LOW);
if(DEBUG == 1)
{
Serial.write("HOME LOW, SYNC LOW");
Serial.println();
}
}
delayMicroseconds(i); // DELAY BETWEEN STEPS, BETTER TO DO THIS WAIT HERE AND GIVE ANOTHER DELAY TO HOME READING, THIS WAY SYNC IS ALREADY WORKING
counter=counter+1;
}
}
void loop()
{
motorstep(3000,1);
delay(100);
motorstep(10000,0);
delay(100);
motorstep(400,1);
delay(100);
motorstep(200,0);
delay(100);
motorstep(200,0);
delay(100);
motorstep(10000,1);
delay(100);
motorstep(400,0);
delay(100);
}
(maybe this should be in Interfacing, not in the Exhibition-forum)
