Motor dreht nicht mehr rückwärts


hallo ich hab mal wieder eine frage:

ich habe die motorsteuerung vnh3sp30 verbaut. um das system zu testen verwende ich folgenden code. allerdings dreht der motor nur vorwärts und nicht mehr rückwärts. woran kann das liegen?


code: [select]

const int motorar = 43;
const int diagar = 47;
const int pwmr=45;
const int diagbr =51;
const int motorbr = 53;
const int csr =49;
const int akkur=a15;
const int motoral = 42;
const int diagal = 46;
const int pwml=44;
const int diagbl =50;
const int motorbl = 52;
const int csl =48;

void setup(){
   serial.begin(9600);
   pinmode(motora, output);
   pinmode(motorb, output);
   pinmode(cs, output);
   pinmode(diagb, input);
   pinmode(diagb, input);
   pinmode (pwm, output);
   
}

void loop(){

digitalwrite (cs, low);



 digitalwrite(motora, high);
 digitalwrite(motorb, low);
  analogwrite(pwm,50);
   delay(50000)


 digitalwrite(motora, low);
 digitalwrite(motorb, high);
 analogwrite(pwm,50);
 delay(50000)


 }
//

bitte gib uns einen funktionierenden sketch mit dem du die beschriebenen probleme hast.

ich bekomme folgende fehlermeldungen
code: [select]
sketch_aug06a.ino: in function 'void setup()':
sketch_aug06a:17: error: 'motora' not declared in scope
sketch_aug06a:18: error: 'motorb' not declared in scope
sketch_aug06a:19: error: 'cs' not declared in scope
sketch_aug06a:20: error: 'diagb' not declared in scope
sketch_aug06a:22: error: 'pwm' not declared in scope
sketch_aug06a.ino: in function 'void loop()':
sketch_aug06a:28: error: 'cs' not declared in scope
sketch_aug06a:32: error: 'motora' not declared in scope
sketch_aug06a:33: error: 'motorb' not declared in scope
sketch_aug06a:34: error: 'pwm' not declared in scope
sketch_aug06a:38: error: expected `;' before 'digitalwrite'
sketch_aug06a:44: error: expected `;' before '}' token


grüße uwe


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