control BTS7960 with arduino Uno by HwThinker

//BLDC sensorless 360W tester by HwThinker
const int analogInPin = A0;
const int analogOutPin = 9;
const int dirInPin = 13;
const int dirOutPin = 12;

int sensorValue = 0;        // value read from the pot
int outputValue = 0;        // value output to the PWM (analog out)

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600);
  pinMode(dirInPin,INPUT_PULLUP);
  pinMode(dirOutPin,OUTPUT);
}

void loop() {
  if(digitalRead(dirInPin)==LOW){
    digitalWrite(dirOutPin,HIGH);
  } else {
    digitalWrite(dirOutPin,LOW);
  }
  // read the analog in value:
  sensorValue = analogRead(analogInPin);
  // map it to the range of the analog out:
  outputValue = map(sensorValue, 0, 1023, 0, 255);
  // change the analog out value:
  analogWrite(analogOutPin, outputValue);

  // print the results to the Serial Monitor:
  Serial.print("sensor = ");
  Serial.print(sensorValue);
  Serial.print("\t output = ");
  Serial.println(outputValue);
  delay(1);
}