使用Pretues仿真Arduino驅動步進電機

這幾天想作一個給金魚自動餵食的裝置，因此學習了下如何操控步進電機，如今作個記錄。

使用Pretues仿真Arduino的話，能夠參考：http://www.geek-workshop.com/thread-26325-1-1.html。

步進電機的話，是經過給不一樣的相通電，造成電磁場，來驅動中間的轉子。轉子越多，每一步就能夠越小，電機就越精確。

ULN2004A是供電模塊，經過電平信號的配置來輸出電壓，經過配置1，2，3，4輸入，來使得13，14，15，16輸出電壓驅動電機。

PS：若是要電機反轉的話，就反序配置引腳。參見：http://www.elecfans.com/dianlutu/187/20170116475004.html。

仿真結果：

代碼：

/* Main.ino file generated by New Project wizard
 *
 * Created:   Thu Sep 5 2013
 * Processor: ATmega328P
 * Compiler:  Arduino AVR
 */

 #define LED ( 13 )
 #define MOTOR_PIN0 ( 0 )
 #define MOTOR_PIN1 ( 1 )
 #define MOTOR_PIN2 ( 2 )
 #define MOTOR_PIN3 ( 3 )
 
void setup()
 { // put your setup code here, to run once:
   pinMode( LED, OUTPUT );
   pinMode( MOTOR_PIN0, OUTPUT );
   pinMode( MOTOR_PIN1, OUTPUT );
   pinMode( MOTOR_PIN2, OUTPUT );
   pinMode( MOTOR_PIN3, OUTPUT );
 }

void loop()
 { // put your main code here, to run repeatedly:
   /*digitalWrite( LED, HIGH );
   delay( 500 );
   digitalWrite( LED, LOW );
   delay( 500 );*/
   
   static int i = 3;
   
   switch( i-- )
   {
      case 0:
     digitalWrite( MOTOR_PIN0, HIGH );
     digitalWrite( MOTOR_PIN1, LOW );
     digitalWrite( MOTOR_PIN2, LOW );
     digitalWrite( MOTOR_PIN3, LOW );
     digitalWrite( LED, HIGH );
     break;
      case 1:
     digitalWrite( MOTOR_PIN0, LOW );
     digitalWrite( MOTOR_PIN1, HIGH );
     digitalWrite( MOTOR_PIN2, LOW );
     digitalWrite( MOTOR_PIN3, LOW );
     digitalWrite( LED, LOW );
     break;
      case 2:
     digitalWrite( MOTOR_PIN0, LOW );
     digitalWrite( MOTOR_PIN1, LOW );
     digitalWrite( MOTOR_PIN2, HIGH );
     digitalWrite( MOTOR_PIN3, LOW );
     digitalWrite( LED, HIGH );
     break;
      case 3:
     digitalWrite( MOTOR_PIN0, LOW );
     digitalWrite( MOTOR_PIN1, LOW );
     digitalWrite( MOTOR_PIN2, LOW );
     digitalWrite( MOTOR_PIN3, HIGH );
     digitalWrite( LED, LOW );
     break;
      default:
     break;
   }
   
   delay(500);
   
   if( 0 > i )
      i = 3;
 }