Arduino workshop: nagyobb vasak (2012. december 6.)

stepper_repl.ino

// http://hsbp.org/arduino

#include <Stepper.h>

Stepper myStepper(100, 8, 10, 9, 11);

 // The setup() method runs once, when the sketch starts
 void setup()   {                
   // initialize the digital pin as an output:
   Serial.begin(9600);
 }
 // the loop() method runs over and over again,
 // as long as the Arduino has power
 void loop()                     
 {
   int speed = 0, step_num = 0;
   Serial.print("Speed: ");
   while (true) {
    while (!Serial.available());
    byte b = Serial.read();
    Serial.write(b); 
    if (b <= '9' && b >= '0') {
     speed = speed * 10 + b - '0';
    } else if (b == '\r') {
      Serial.print("Number of steps: ");
      break;
    }
   }
   boolean negative = false;
   while (true) {
    while (!Serial.available());
    byte b = Serial.read();
    Serial.write(b); 
    if (b <= '9' && b >= '0') {
     step_num = step_num * 10 + b - '0';
    } else if (b == '-') {
     negative = true;
    } else if (b == '\r') {
      break;
    }
   }
   myStepper.setSpeed(speed);
   myStepper.step(negative ? -step_num : step_num); // -step_num if negative else step_num
 }