MAX30100 doesn't update esp32

Need Help With My Project
1

So i have a project with max30100,mcp9808 and ad8232 and st7789 tft screen,when i upload the code only temprature and ecg update but max30100 doesnt update correctly on blynk as well as on screen,what is wrong?
this is my code

#define BLYNK_TEMPLATE_ID "----------"
#define BLYNK_TEMPLATE_NAME "--------"
#define BLYNK_AUTH_TOKEN "---------"

#include <Wire.h>
#include <BlynkSimpleEsp32.h>
#include "MAX30100_PulseOximeter.h"
#include <Adafruit_GFX.h>
#include <Adafruit_MCP9808.h>
#include <Adafruit_ST7789.h>

char auth[] = "-------";
char ssid[] = "-------";
char pass[] = "--------";

// ECG Pin
const int analogPin = 34;

// TFT Pins
#define TFT_CS    5
#define TFT_DC    2
#define TFT_RST   4

// ECG Graph Config
#define WAVEFORM_HEIGHT 200
#define WAVEFORM_START_Y (320 - WAVEFORM_HEIGHT)
#define BUFFER_SIZE 240
int waveformBuffer[BUFFER_SIZE];
int bufferIndex = 0;
unsigned long lastSampleTime = 0;
const long sampleInterval = 10;

// Sensors
PulseOximeter pox;
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
Adafruit_MCP9808 tempsensor = Adafruit_MCP9808();
float heartRate = 0, spO2 = 0;
#define RESET_TIMEOUT_MS 10000  // Reset sensor if no update for 10s
uint32_t lastValidUpdate = 0;

// Blynk Timer
BlynkTimer timer;

void setup() {
    Serial.begin(115200);
    Wire.setClock(400000);  // Increase I2C speed

    Blynk.begin(auth, ssid, pass); // Start Blynk

    tft.init(240, 320);
    tft.setRotation(4);
    tft.fillScreen(ST77XX_BLACK);
    tft.setTextSize(2);
    tft.setTextColor(ST77XX_WHITE);
    tft.setCursor(10, 10);
    tft.println("Initializing...");

    if (!pox.begin()) {
    Serial.println("Oximeter FAILED! Retrying...");
    delay(1000);
    if (!pox.begin()) { // Retry once
        Serial.println("Oximeter permanently failed!");
        tft.fillScreen(ST77XX_BLACK);
        tft.setCursor(10, 10);
        tft.println("Oximeter FAILED!");
        while (1);
    }
} else {
    Serial.println("Oximeter SUCCESS!");
}
    if (!tempsensor.begin()) {
        Serial.println("MCP9808 Sensor NOT Found!");
        while (1);
    }

    lastValidUpdate = millis();

    // **Blynk Timers**
    timer.setInterval(5000L, updateBlynk); // Update Blynk every 5s
}

void loop() {
    pox.update(); // Must run frequently!
    
    unsigned long currentMillis = millis();
    int ecgValue = analogRead(analogPin);

    if (currentMillis - lastSampleTime >= sampleInterval) {
        lastSampleTime = currentMillis;
        updateWaveformBuffer(ecgValue);
        displayECGWaveform();
        Blynk.virtualWrite(V4, 4095 - ecgValue); // Fix Blynk graph inversion
    }

    // Force update every cycle to avoid freezing
    heartRate = pox.getHeartRate();
    spO2 = pox.getSpO2();

    if (millis() - lastValidUpdate > RESET_TIMEOUT_MS) {
        Serial.println("MAX30100 not responding, restarting...");
        pox.begin();
        lastValidUpdate = millis();
    }

    Blynk.run();
    timer.run();
}

// **Blynk Update Function**
void updateBlynk() {
    heartRate = pox.getHeartRate();
    spO2 = pox.getSpO2();
    float temperatureC = tempsensor.readTempC();

    // **Check if Finger is Removed**
    if (heartRate > 0 && spO2 > 0) {
        lastValidUpdate = millis();  // Reset timeout if valid data received
    } else {
        heartRate = 0;
        spO2 = 0;
        tft.fillScreen(ST77XX_BLACK);
        tft.setCursor(10, 10);
        tft.setTextSize(2);
        tft.println("Place Finger!");
    }
  
    Blynk.virtualWrite(V1, heartRate);
    Blynk.virtualWrite(V2, spO2);

    tft.fillScreen(ST77XX_BLACK);
    tft.setCursor(10, 10);
    tft.setTextSize(2);
    tft.print("HR: ");
    tft.print(heartRate);
    tft.print(" bpm");

    tft.setCursor(10, 50);
    tft.setTextSize(2);
    tft.print("SpO2: ");
    tft.print(spO2);
    tft.print("%");


    tft.setCursor(10, 90);
    tft.setTextSize(2);
    tft.print("TEMP: ");
    tft.print(temperatureC, 1);
    tft.print((char)247);
    tft.print("C");

    Serial.print("HR: "); Serial.print(heartRate);
    Serial.print("\tSpO2: "); Serial.print(spO2);
    Serial.print("\tTemp: "); Serial.print(temperatureC);
    Serial.print("\tECG: "); Serial.println(analogRead(analogPin));

  Blynk.virtualWrite(V3, temperatureC);
}

// **Update ECG waveform buffer**
void updateWaveformBuffer(int reading) {
    waveformBuffer[bufferIndex] = reading;
    bufferIndex = (bufferIndex + 1) % BUFFER_SIZE;
}

// **Display ECG waveform on TFT**
void displayECGWaveform() {
    tft.fillRect(0, WAVEFORM_START_Y, 240, WAVEFORM_HEIGHT, ST77XX_BLACK);
    for (int i = 1; i < BUFFER_SIZE; i++) {
        int previousIndex = (bufferIndex + i - 1) % BUFFER_SIZE;
        int currentIndex = (bufferIndex + i) % BUFFER_SIZE;
        int y1 = map(waveformBuffer[previousIndex], 0, 4095, WAVEFORM_START_Y + WAVEFORM_HEIGHT, WAVEFORM_START_Y);
        int y2 = map(waveformBuffer[currentIndex], 0, 4095, WAVEFORM_START_Y + WAVEFORM_HEIGHT, WAVEFORM_START_Y);
        tft.drawLine(i - 1, y1, i, y2, ST77XX_WHITE);
    }
}
2

@hypxdon Please edit your post, using the pencil icon at the bottom, and add triple backticks at the beginning and end of your code so that it displays correctly.
Triple backticks look like this:
```

Copy and paste these if you can’t find the correct symbol on your keyboard.

You should also edit your post to provide the information requested in this link…

Pete.

3

done,can you help?

4

You’ve edited your code, but not done the rest.

Pete.