// for https://forum.arduino.cc/t/trouble-with-ardupid-h-library/1189957/11

const byte LHS = 11;
const byte RHS = 10;
const int KnobPin = A3;
int lastKnob ;
int thresholdL = -10;
int thresholdR = 10;

void setup() {
  // put your setup code here, to run once:

  pinMode(LHS, OUTPUT);
  pinMode(RHS, OUTPUT);
  lastKnob = -1; // make sure it adjusts // analogRead(KnobPin)-512;
  Serial.begin(115200);
}

void loop() {
  // put your main code here, to run repeatedly:
  int knob = analogRead(KnobPin)-512;
  if(knob != lastKnob){ //change

    if(knob <= thresholdL){
      int offset = map(knob,-512,thresholdL,0,255);
      analogWrite(LHS, offset);
      analogWrite(RHS, 255);
   //   Serial.print(offset);
    } else if (knob >= thresholdR) {
      int offset = map(knob,thresholdR,511,255,0);
      analogWrite(LHS, 255);
      analogWrite(RHS, offset);
   //    Serial.print(offset);
    } else {
      analogWrite(LHS, 255);
      analogWrite(RHS, 255);
      Serial.print('.');
    }
    Serial.print(knob > lastKnob? "^": "v");
    lastKnob = knob;
  }





}