Read Pulse Of Built In Hall Sensor and Measure speed (RPM)

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Hello I am here to asking about:

  1. How To Read Built In Hall Sensor Pulse of BLDC motors ( My BLDC have 3 Sensor hall, have GND,+5V, H1,H2,H3 pin)
  2. How to Measure Speed(RPM) BLDC motor with Built in Hall sensor, should i use 3 buiilt in sensor hall ??
    This is How i am wiring :
    *to measure speed or read pulse builtin hall sensor, it enough to use 1 hall sensor or we must use 3 of sensor ?
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    11890×1417 231 KB

    and this my Arduino Code i found on internet:

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int ENCA = 2;
int encoderPos = 0;
float rpm;
unsigned int waktulama1, waktusekarang1; // variabel deklarasi waktu update kecepatan encoder;



void setup() {
  // put your setup code here, to run once:
  pinMode (ENCA, INPUT_PULLUP);
  Serial.begin(9600);

  attachInterrupt(digitalPinToInterrupt(ENCA), readEncoder, RISING);
}

void loop() {
  // put your main code here, to run repeatedly:
  waktusekarang1 = millis(); // time now
  if (waktusekarang1 - waktulama1 >= 1000) {
    waktulama1 = waktusekarang1;

    Serial.print("nilai pulse : "); // measure pulse
    Serial.print(encoderPos);
    rpm = (encoderPos * 33.33 / 10); //Measure RPM
    Serial.print("   nilai rpm : ");
    Serial.println(rpm);
    encoderPos = 0;
  }
  delay(50);


}

void readEncoder() {
  int a = digitalRead(ENCA);
  if (a > 0) {
    encoderPos++;
  }
}

But after tryin this code, i dont know this code correct or not, cause i am new on arduino

so, anyone know how to read pulse Builtin hall pulse to measure speed(rpm) of BLDC motors
thank you

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Your duplicate topic on the same subject has been deleted. Why did you start a new topic ?

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

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