DIY Infrared Heart Beat Sensor using Arduino

Make a heart beat sensor with only an infrared emitter and a receiver, Arduino and see the real time plot of your heart beat.

May 24, 2020

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Devices & Components

Arduino Uno Rev3

USB-A to Mini-USB Cable

IR transmitter (generic)

IR receiver (generic)

Software & Tools

Arduino IDE

Project description

Code

heart_Beat_sensor_101/code

arduino

this is the code you need to upload to the Arduino board after making the connections.

1// code by YaSh.
2//Heart_Rate_Sensor code.
3
4int reading = 0;
5int  reading_final;
6int Heart_rate;
7void setup()
8{
9    Serial.begin(9600);     //Initializing Serial connections.
10    pinMode(A0,INPUT);
11    pinMode(A1,INPUT);
12    
13}
14//Taking readings and plotting.
15void loop() 
16{
17      for(int  i=0;i<5;i++)                   //For debugging.
18      {
19          reading  = reading + analogRead(A0);
20          //calculating sum of ambient junk readings  5 times so that we can eliminate them afterwards.
21      }
22      reading_final  = (reading)/5;           // Average junk reading calulated.
23      delay(100);
24      Heart_rate = analogRead(A0)-reading_final;  // Final reading value.
25      Serial.println(Heart_rate);                 //Printing and plotting.
26}

// code by YaSh.
//Heart_Rate_Sensor code.

int reading = 0;
int  reading_final;
int Heart_rate;
void setup()
{
    Serial.begin(9600);     //Initializing Serial connections.
    pinMode(A0,INPUT);
    pinMode(A1,INPUT);
    
}
//Taking readings and plotting.
void loop() 
{
      for(int  i=0;i<5;i++)                   //For debugging.
      {
          reading  = reading + analogRead(A0);
          //calculating sum of ambient junk readings  5 times so that we can eliminate them afterwards.
      }
      reading_final  = (reading)/5;           // Average junk reading calulated.
      delay(100);
      Heart_rate = analogRead(A0)-reading_final;  // Final reading value.
      Serial.println(Heart_rate);                 //Printing and plotting.
}

Downloadable files

heart_beat_sensor_101

its the schematic for connecting the IR receiver and emitter to the Arduino.

heart_beat_sensor_101

its the schematic for connecting the IR receiver and emitter to the Arduino.

heart_beat_sensor_101

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