Help with Arduino code

[EdK]

That information helps Chuck.

Looking at the code:

Code:

if(Degrees < 0)
   {
     ToMove = (Degrees*Multiplier)*-1;
     lcd.setCursor(0,0);
     lcd.print("REV");
     lcd.print(abs(Degrees),2);
     lcd.print((char)223);
     lcd.setCursor(8,1);
     lcd.print("Moving");
     rotation(ToMove,0);
     lcd.setCursor(8,1);
     lcd.print("      ");      
   }

The rotation function gets passed a negative number via ToMove.

The rotation function:

Code:

void rotation(float tm, int d)
{  
 if(d == 0)
 {
   digitalWrite(dir, LOW);
 }
 else
 {
   digitalWrite(dir, HIGH);
 }
 
 for(int i = 0; i < tm; i++)  
  {    
   digitalWrite(stp, HIGH);  
   delay(stepdelay);              
   digitalWrite(stp, LOW);  
   delay(stepdelay);              
  }
}

has a "for" loop who's counter is compared to that negative number. I don't think the counter will ever be less than that negative number so the loop won't ever run. I think Arvid needs to verify that since it makes my brain hurt.  

Ed