[SOLVED] Rotary Encoder only increments

Using Arduino General Electronics
20

anishkgt:

void loop() {

pinAState = digitalRead(PinA);
 if ((PinALastState == LOW) && (pinAState == HIGH))
 {
    // (... counter stuff ...)
    Serial.print (digitalRead (PinA)) ; Serial.print (",") ; Serial.println (digitalRead (PinB)) ;
   //Serial.println(Counter);
 }

You have put that line inside the "if ((PinALastState == LOW) && (pinAState == HIGH)) {}"
so it is normal that it only logs when pinA goes high.
But at least you can see that pinB is sometimes low and sometimes high when this happens,
presumably/hopefully depending on the turn direction.