Scribd
Upload
84 views4 pages

Walet

This document contains code for reading pulse oximeter and heart rate sensor data using a MAX30100 sensor and transmitting the data over Bluetooth to an Android device. It initializes the pulse oximeter sensor, registers a callback for detected beats, continuously reads the sensor data and calculates BPM and SpO2 levels. It establishes a Bluetooth connection and prints the BPM and SpO2 values in string format to be sent to and displayed on the Android device.

Uploaded by

Yogi Mahardika
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
84 views4 pages

Walet

This document contains code for reading pulse oximeter and heart rate sensor data using a MAX30100 sensor and transmitting the data over Bluetooth to an Android device. It initializes the pulse oximeter sensor, registers a callback for detected beats, continuously reads the sensor data and calculates BPM and SpO2 levels. It establishes a Bluetooth connection and prints the BPM and SpO2 values in string format to be sent to and displayed on the Android device.

Uploaded by

Yogi Mahardika
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 4

#include <Wire.

h>

#include "MAX30100_PulseOximeter.h"

// PulseOximeter is the higher level interface to the sensor

// it offers:

// * beat detection reporting

// * heart rate calculation

// * SpO2 (oxidation level) calculation

PulseOximeter pox;

uint32_t tsLastReport2 = 0;

uint32_t tsLastReport3 = 0;

uint32_t tsLastReport4 = 0;

// Callback (registered below) fired when a pulse is detected

void onBeatDetected()

Serial.println("Beat!");

#include <SoftwareSerial.h>

int bluetoothTx = 2;

int bluetoothRx = 3;

SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);

char cmd[100];

int cmdIndex;

int Saklar=0;

int hitungan1=0;

int a=0;

int bpm;

boolean cmdStartsWith(char *st) {

for(int i=0; ; i++) {


if(st[i]==0) return true;

if(cmd[i]==0) return false;

if(cmd[i]!=st[i]) return false;;

return false;

void exeCmd()

if( cmdStartsWith("ON") ) {Saklar = 1;}

if( cmdStartsWith("mati ") ) {Saklar = 0;}

void setup()

bluetooth.begin(9600); // Bluetooth default baud is 115200

Serial.begin(9600);

cmdIndex = 0;

delay(500); // wait for bluetooth module to start

bluetooth.begin(115200); // Bluetooth default baud is 115200

bluetooth.print("$");

bluetooth.print("$");

bluetooth.print("$"); // enter cmd mode

delay(250);

bluetooth.println("U,9600,N"); // change baud to 9600

bluetooth.begin(9600);

cmdIndex = 0;

Serial.println("Initializing MAX30100");

// Initialize the PulseOximeter instance and register a beat-detected callback

pox.begin();

pox.setOnBeatDetectedCallback(onBeatDetected);
// Initialize the PulseOximeter instance

// Failures are generally due to an improper I2C wiring, missing power supply

// or wrong target chip

// The default current for the IR LED is 50mA and it could be changed

// by uncommenting the following line. Check MAX30100_Registers.h for all the

// available options.

// pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);

// Register a callback for the beat detection

void loop()

pox.update();

// Make sure to call update as fast as possible

while(bluetooth.available()) {

char c = (char)bluetooth.read();

if(c=='\n')

cmd[cmdIndex] = 0;

exeCmd(); // execute the command

cmdIndex = 0; // reset the cmdIndex

else

cmd[cmdIndex] = c;

if(cmdIndex<99) cmdIndex++;

}
// Asynchronously dump heart rate and oxidation levels to the serial

// For both, a value of 0 means "invalid"

bluetooth.print

( (String)"BPM " + pox.getHeartRate()*3000/1023 + "\n" );//print to android

bluetooth.print

( (String)"SPO2 " + pox.getSpO2()*1.041 +"%" + "\n" );//print to android

//Pembacaan sensor

int buttonState = analogRead(A3);

You might also like