Heart beat sensor (KY 039) Interfacing with ESP8266

 

Program

const int heartbeatSensorPin = A0; // Analog pin connected to the Heartbeat Sensor module

const int ledPin = 3; // Digital pin connected to the LED (optional)


void setup() {

  pinMode(heartbeatSensorPin, INPUT); // Set the Heartbeat Sensor pin as INPUT

  pinMode(ledPin, OUTPUT); // Set the LED pin as OUTPUT (optional)

  Serial.begin(9600); // Initialize serial communication for debugging (optional)

}


void loop() {

  int heartbeatValue = analogRead(heartbeatSensorPin); // Read the analog value from the Heartbeat Sensor

  int heartbeatRate = map(heartbeatValue, 0, 1023, 40, 220); // Map the sensor value to a heartbeat rate range (40 to 220 BPM)

  Serial.print("Heartbeat Rate (BPM): ");

  Serial.println(heartbeatRate); // 

}

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