آموزش راه اندازی ماژول سنسور ضربان قلب با آردوینو

  /*
  Heart-rate-Sensor
  made on 02 Feb 2021
  by Amir Mohammad Shojaee @ Electropeak
  
Home


*/

int pulse = 2;
int current_ms = 0;
int inter_num = 0;
int last_ms;
int x;
int heart_per_min;
int  arr[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
void setup()
{
  Serial.begin(9600);
  pinMode(pulse, INPUT);
  attachInterrupt(0, pulse_num, RISING );
  last_ms = millis();
}

void loop()
{
  if (arr[0] != 0) {
    Serial.print("heart_per_min:   ");
    Serial.println(heart_per_min);
    heart_per_min=0;
  }
  Serial.println("wait ");
  delay(10000);
}

void pulse_num()
{
  inter_num++;
  if (inter_num == 9) {
    inter_num = 0;
  }
  
  float sum = 0.00;
  current_ms = millis();
  x = current_ms - last_ms;

  last_ms = millis();
  for (int i = 0; i < 9; i++) {
    arr[i] = arr[i + 1];
  }
  arr[9] = x;
  for (int i = 0; i < 10; i++) {
    sum += arr[i];
  }
  sum = sum / 10.00;
  heart_per_min = (60000.00)/sum;

}