No matching function for call to 'PulseOximeter::begin(int, TwoWire*)'

Projects Programming
1

Hi all
How to fix this error please?

thanks
Adam

#include <Wire.h>
#include "MAX30100_PulseOximeter.h"

#define REPORTING_PERIOD_MS     1000

// Create a PulseOximeter object
PulseOximeter pox;

// Time at which the last beat occurred
uint32_t tsLastReport = 0;

// Callback routine is executed when a pulse is detected
void onBeatDetected() {
    Serial.println("♥ Beat!");
}

void setup() {
    Serial.begin(115200);
    Serial.print("Initializing pulse oximeter..");

Wire.begin(43,44);  /// added for ESP32
///    pox.begin();  /// O
 pox.begin(0x57, &Wire)  /// MDF for I2C 

    // Initialize sensor
 /*   if (!pox.begin()) {
        Serial.println("FAILED");
        for(;;);
    } else {
        Serial.println("SUCCESS");
    }   */

  // Configure sensor to use 7.6mA for LED drive
  pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);

    // Register a callback routine
    pox.setOnBeatDetectedCallback(onBeatDetected);
}

void loop() {
    // Read from the sensor

    Serial.print("loop!!!");
    
    pox.update();

 ///  pox.update(0x76, &Wire);

    // Grab the updated heart rate and SpO2 levels
    if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
        Serial.print("Heart rate:");
        Serial.print(pox.getHeartRate());
        Serial.print("bpm / SpO2:");
        Serial.print(pox.getSpO2());
        Serial.println("%");

        tsLastReport = millis();
    }
}

ERROR:

Arduino: 1.8.19 (Windows 10), Board: "ESP32S3 Dev Module, Disabled, Disabled, QIO 80MHz, 4MB (32Mb), Core 1, Core 1, Hardware CDC and JTAG, Disabled, Disabled, Disabled, UART0 / Hardware CDC, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi), 921600, None, Disabled"





















C:\Users\summe\OneDrive\Documents\Arduino\ESP32_MAX30100_HRS_BO_N1\ESP32_MAX30100_HRS_BO_N1.ino: In function 'void setup()':

ESP32_MAX30100_HRS_BO_N1:40:23: error: no matching function for call to 'PulseOximeter::begin(int, TwoWire*)'

 pox.begin(0x76, &Wire)  /// MDF for I2C

                      ^

In file included from C:\Users\summe\OneDrive\Documents\Arduino\ESP32_MAX30100_HRS_BO_N1\ESP32_MAX30100_HRS_BO_N1.ino:19:

C:\Users\summe\OneDrive\Documents\Arduino\libraries\Arduino-MAX30100-master\src/MAX30100_PulseOximeter.h:53:10: note: candidate: 'bool PulseOximeter::begin(PulseOximeterDebuggingMode)'

    bool begin(PulseOximeterDebuggingMode debuggingMode_=PULSEOXIMETER_DEBUGGINGMODE_NONE);

         ^~~~~

C:\Users\summe\OneDrive\Documents\Arduino\libraries\Arduino-MAX30100-master\src/MAX30100_PulseOximeter.h:53:10: note:   candidate expects 1 argument, 2 provided

Multiple libraries were found for "MAX30100_PulseOximeter.h"

Used: C:\Users\summe\OneDrive\Documents\Arduino\libraries\Arduino-MAX30100-master

Not used: C:\Users\summe\OneDrive\Documents\Arduino\libraries\MAX30100lib

exit status 1

no matching function for call to 'PulseOximeter::begin(int, TwoWire*)'



This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
2

Where did you get the MAX30100_PulseOximeter library?

Open the file MAX30100_PulseOximeter.h on your computer and look for the prototype for the begin() function. Does the prototype match the way you're trying to call it?

1 Like
3

thanks.
actually, I just wonder if MAX30100 is possibly be able to hook to software I2C pins.

can you help figure out how to pass the device address to the begin() method ? and the device is MAX30100.

ONE of the library I used:
MAX3010x Sensor Library - Arduino Reference

4

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