Multiple stepper motor delay

[vikaskandari]

Hello, when using multiple stepper motors they don't work at the same time they work one by one, due to while loop used in the code.

#include <Stepper.h>

const int spr = 200;  // change this to fit the number of steps per revolution
const int rmp = 100;
// for your motor

// initialize the stepper library on pins 8 through 11:
Stepper sm1(spr, 52, 50, 48, 46);
Stepper sm2(spr, 44, 42, 40, 38);
Stepper sm3(spr, 36, 34, 32, 30);
Stepper sm4(spr, 28, 26, 24, 22);




void setup() {
  // set the speed at 60 rpm:
  sm1.setSpeed(rmp);
  sm2.setSpeed(rmp);
  sm3.setSpeed(rmp);
  sm4.setSpeed(rmp);
  Serial.begin(9600);

  //  myStepper.step(stepsPerRevolution);
}

void loop() {
  // step one revolution  in one direction:
  Serial.println("clockwise");
  sm1.step(spr);
  sm2.step(spr);
  sm3.step(spr);
  sm4.step(spr);

}

when m1 finished its first loop then m2 starts and it goes on.

Please change the while loop with some async loop which will allow other stepper motors to start simultaneously.