I have found a code, it that can blink an LED on Arduino according to Heart Beat,. I am using AD8232 as a sensor for Heart Rate..
// Variables
int PulseSensorPurplePin = 0; // Pulse Sensor PURPLE WIRE connected to ANALOG PIN 0
int LED13 = 13; // The on-board ArduionArduino LED
int Signal; // holds the incoming raw data. Signal value can range from 0-1024
int Threshold = 550; // Determine which Signal to "count as a beat", and which to ingore.
// The SetUp Function:
void setup() {
pinMode(LED13, OUTPUT); // pin that will blink to your heartbeat!
Serial.begin(9600); // Set'sSets up Serial Communication at certain speed.
}
// The Main Loop Function
void loop() {
Signal = analogRead(PulseSensorPurplePin); // Read the PulseSensor's value.
// Assign this value to the "Signal" variable.
Serial.println(Signal); // Send the Signal value to Serial Plotter.
if(Signal > Threshold){ {
// If the signal is above "550", then "turn-on" Arduino's on-Board LED.
digitalWrite(LED13, HIGH);
} else {
digitalWrite(LED13, LOW); // Else, the sigalsignal must be below "550", so "turn-off" this LED.
}
delay(10);
}
My question is : How can iI get BPM?
Is this code for BPM is correct.?
int x = 0;
int LastTime = 0;
bool BPMTiming = false;
bool BeatComplete = false;
int BPM = 0;
#define UpperThreshold 518
#define LowerThreshold 490
int LED13 = 44; // The on-board ArduionArduino LED
int Signal; // holds the incoming raw data. Signal value can range from 0-1024
void setup() {
pinMode(LED13, OUTPUT);
Serial.begin(9600);
}
void loop()
{
int value = analogRead(0);
if (value > UpperThreshold)
{
if (BeatComplete)
{
BPM = millis() - LastTime;
BPM = int(60 / (float(BPM) / 1000));
BPMTiming = false;
BeatComplete = false;
}
if (BPMTiming == false)
{
LastTime = millis();
BPMTiming = true;
}
}
if ((value < LowerThreshold) & (BPMTiming))
BeatComplete = true;
// display bpm
Serial.print(BPM);
Serial.println(" BPM");
x++;
Signal = analogRead(0); // Read the PulseSensor's value.
// Assign this value to the "Signal" variable.
//Serial.println(Signal); // Send the Signal value to Serial Plotter.
if (Signal > UpperThreshold) {
// If the signal is above "550", then "turn-on" Arduino's on-Board LED.
digitalWrite(LED13, HIGH);
} else {
digitalWrite(LED13, LOW); // Else, the sigalsignal must be below "550", so "turn-off" this LED.
}
//delay(10);
}
