THLAB Stepper Motor Code

[rkr5371]

void setup() {

  //Pins with output are related to the motors and the input pins are related to the button switches
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, INPUT_PULLUP);
  pinMode(7, INPUT_PULLUP);
  pinMode(8, INPUT_PULLUP);
  pinMode(9, INPUT_PULLUP);
  pinMode(10, INPUT_PULLUP);
  pinMode(11, INPUT_PULLUP);
  digitalWrite(2, HIGH);
}
 



void loop() {

//this is just the same while loop repeated 6 times for each axis in the pos. and neg. direction
// the digital read pin is based off of the button closing the loop or not
  //x direction
   while (digitalRead(6) == LOW)
  {digitalWrite(2, LOW);
    digitalWrite(3, HIGH);
    delayMicroseconds(250);
    digitalWrite(3, LOW);
    delayMicroseconds(250);}

  while (digitalRead(7) == LOW)
  {digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    delayMicroseconds(250);
    digitalWrite(3, LOW);
    delayMicroseconds(250);}

//y direction
    while (digitalRead(8) == LOW)
  {digitalWrite(2, LOW);
    digitalWrite(4, HIGH);
    delayMicroseconds(250);
    digitalWrite(4, LOW);
    delayMicroseconds(250);}

  while (digitalRead(9) == LOW)
  {digitalWrite(2, HIGH);
    digitalWrite(4, HIGH);
    delayMicroseconds(250);
    digitalWrite(4, LOW);
    delayMicroseconds(250);}


//z direction
    while (digitalRead(10) == LOW)
  {digitalWrite(2, LOW);
    digitalWrite(5, HIGH);
    delayMicroseconds(250);
    digitalWrite(5, LOW);
    delayMicroseconds(250);}

  while (digitalRead(11) == LOW)
  {digitalWrite(2, HIGH);
    digitalWrite(5, HIGH);
    delayMicroseconds(250);
    digitalWrite(5, LOW);
    delayMicroseconds(250);}
  
  }  

[camsysca]

Question is?

[LarryD]

while( ) is/can_be blocking, avoid using it like a plague.

Scan you switches every 50ms and look for switch change in state not switch level.

[Railroader]

The delays are surely not the best. The delay setting the length of the pulse can be okey but the delay between two pulses, try 25 mS as a first test. Likely it can be tuned down to some 10 mS.

[LarryD]

The delays there are micro seconds.

delayMicroseconds(250);}