I am using ESP32 board and these 3 sensors described in the subject, however my problem is read data from MAX30102, the sensor turn on the led however can't read bpm. MLX90614 and MPU6050 works very well. :o
The connections are okay, because i can get good reads from MAX30102 in a code alone, as well MLX90614 .
My code:
#include <Adafruit_GFX.h> //OLED libraries
#include <Adafruit_SSD1306.h>
#include <Wire.h>
#include "MAX30105.h" //MAX3010x library
#include "heartRate.h" //Heart rate calculating algorithm
#include <Adafruit_MLX90614.h> //temperatura
//#include "SSD1306.h"
#include <Adafruit_MPU6050.h> //acellerometro
#include <Adafruit_Sensor.h>
Adafruit_MPU6050 mpu;
MAX30105 particleSensor;
#define REPORTING_PERIOD_MS 1000
const byte RATE_SIZE = 4; //Increase this for more averaging. 4 is good.
byte rates[RATE_SIZE]; //Array of heart rates
byte rateSpot = 0;
long lastBeat = 0; //Time at which the last beat occurred
float beatsPerMinute;
int beatAvg;
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //Declaring the display name (display)
static const unsigned char PROGMEM logo2_bmp[] =
{ 0x03, 0xC0, 0xF0, 0x06, 0x71, 0x8C, 0x0C, 0x1B, 0x06, 0x18, 0x0E, 0x02, 0x10, 0x0C, 0x03, 0x10, //Logo2 and Logo3 are two bmp pictures that display on the OLED if called
0x04, 0x01, 0x10, 0x04, 0x01, 0x10, 0x40, 0x01, 0x10, 0x40, 0x01, 0x10, 0xC0, 0x03, 0x08, 0x88,
0x02, 0x08, 0xB8, 0x04, 0xFF, 0x37, 0x08, 0x01, 0x30, 0x18, 0x01, 0x90, 0x30, 0x00, 0xC0, 0x60,
0x00, 0x60, 0xC0, 0x00, 0x31, 0x80, 0x00, 0x1B, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x04, 0x00, };
static const unsigned char PROGMEM logo3_bmp[] =
{ 0x01, 0xF0, 0x0F, 0x80, 0x06, 0x1C, 0x38, 0x60, 0x18, 0x06, 0x60, 0x18, 0x10, 0x01, 0x80, 0x08,
0x20, 0x01, 0x80, 0x04, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x02, 0xC0, 0x00, 0x08, 0x03,
0x80, 0x00, 0x08, 0x01, 0x80, 0x00, 0x18, 0x01, 0x80, 0x00, 0x1C, 0x01, 0x80, 0x00, 0x14, 0x00,
0x80, 0x00, 0x14, 0x00, 0x80, 0x00, 0x14, 0x00, 0x40, 0x10, 0x12, 0x00, 0x40, 0x10, 0x12, 0x00,
0x7E, 0x1F, 0x23, 0xFE, 0x03, 0x31, 0xA0, 0x04, 0x01, 0xA0, 0xA0, 0x0C, 0x00, 0xA0, 0xA0, 0x08,
0x00, 0x60, 0xE0, 0x10, 0x00, 0x20, 0x60, 0x20, 0x06, 0x00, 0x40, 0x60, 0x03, 0x00, 0x40, 0xC0,
0x01, 0x80, 0x01, 0x80, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x60, 0x06, 0x00, 0x00, 0x30, 0x0C, 0x00,
0x00, 0x08, 0x10, 0x00, 0x00, 0x06, 0x60, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x01, 0x80, 0x00 };
//TEMPERATURE
Adafruit_MLX90614 mlx= Adafruit_MLX90614();
int objTemp;
int ambTemp;
void setup() {
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); //Start the OLED display
display.setTextSize(2); //And still displays the average BPM
display.setTextColor(WHITE);
//display.println("Hello Bitches");
display.display();
delay(3000);
Serial.begin(115200); // Remember to match this value with the baud rate in your console
mlx.begin();
// Initialize sensor
particleSensor.begin(Wire, I2C_SPEED_FAST); //Use default I2C port, 400kHz speed
particleSensor.setup(); //Configure sensor with default settings
particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running
//pox.begin();
//pox.setOnBeatDetectedCallback(onBeatDetected);
//acelerometro
// Try to initialize!
if (!mpu.begin()) {
Serial.println("Failed to find MPU6050 chip");
while (1) {
delay(10);
}
}
Serial.println("MPU6050 Found!");
mpu.setAccelerometerRange(MPU6050_RANGE_8_G);
Serial.print("Accelerometer range set to: ");
switch (mpu.getAccelerometerRange()) {
case MPU6050_RANGE_2_G:
Serial.println("+-2G");
break;
case MPU6050_RANGE_4_G:
Serial.println("+-4G");
break;
case MPU6050_RANGE_8_G:
Serial.println("+-8G");
break;
case MPU6050_RANGE_16_G:
Serial.println("+-16G");
break;
}
mpu.setGyroRange(MPU6050_RANGE_500_DEG);
Serial.print("Gyro range set to: ");
switch (mpu.getGyroRange()) {
case MPU6050_RANGE_250_DEG:
Serial.println("+- 250 deg/s");
break;
case MPU6050_RANGE_500_DEG:
Serial.println("+- 500 deg/s");
break;
case MPU6050_RANGE_1000_DEG:
Serial.println("+- 1000 deg/s");
break;
case MPU6050_RANGE_2000_DEG:
Serial.println("+- 2000 deg/s");
break;
}
mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
Serial.print("Filter bandwidth set to: ");
switch (mpu.getFilterBandwidth()) {
case MPU6050_BAND_260_HZ:
Serial.println("260 Hz");
break;
case MPU6050_BAND_184_HZ:
Serial.println("184 Hz");
break;
case MPU6050_BAND_94_HZ:
Serial.println("94 Hz");
break;
case MPU6050_BAND_44_HZ:
Serial.println("44 Hz");
break;
case MPU6050_BAND_21_HZ:
Serial.println("21 Hz");
break;
case MPU6050_BAND_10_HZ:
Serial.println("10 Hz");
break;
case MPU6050_BAND_5_HZ:
Serial.println("5 Hz");
break;
}
Serial.println("");
delay(100);
}
void loop() {
objTemp = mlx.readObjectTempC();
ambTemp = mlx.readObjectTempC();
long irValue = particleSensor.getIR(); //Reading the IR value it will permit us to know if there's a finger on the sensor or not
//Also detecting a heartbeat
if(irValue > 7000){ //If a finger is detected
display.clearDisplay(); //Clear the display
display.drawBitmap(5, 5, logo2_bmp, 24, 21, WHITE); //Draw the first bmp picture (little heart)
display.setTextSize(2); //Near it display the average BPM you can display the BPM if you want
display.setTextColor(WHITE);
display.setCursor(50,0);
display.println("BPM");
display.setCursor(50,18);
display.println(beatAvg);
display.display();
if (checkForBeat(irValue) == true) //If a heart beat is detected
{
display.clearDisplay(); //Clear the display
display.drawBitmap(0, 0, logo3_bmp, 32, 32, WHITE); //Draw the second picture (bigger heart)
display.setTextSize(2); //And still displays the average BPM
display.setTextColor(WHITE);
display.setCursor(50,0);
display.println("BPM");
display.setCursor(50,18);
display.println(beatAvg);
display.display();
//tone(3,1000); //And tone the buzzer for a 100ms you can reduce it it will be better
delay(100);
//noTone(3); //Deactivate the buzzer to have the effect of a "bip"
//We sensed a beat!
long delta = millis() - lastBeat; //Measure duration between two beats
lastBeat = millis();
beatsPerMinute = 60 / (delta / 1000.0); //Calculating the BPM
if (beatsPerMinute < 255 && beatsPerMinute > 20) //To calculate the average we strore some values (4) then do some math to calculate the average
{
rates[rateSpot++] = (byte)beatsPerMinute; //Store this reading in the array
rateSpot %= RATE_SIZE; //Wrap variable
//Take average of readings
beatAvg = 0;
for (byte x = 0 ; x < RATE_SIZE ; x++)
beatAvg += rates[x];
beatAvg /= RATE_SIZE;
}
Serial.println("");
Serial.print ("BPM: ");
Serial.println(beatAvg);
}
}
if (irValue < 7000){ //If no finger is detected it inform the user and put the average BPM to 0 or it will be stored for the next measure
beatAvg=0;
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(30,5);
display.println("Por Favor ");
display.setCursor(30,15);
display.println("Coloque o Dedo ");
display.display();
//noTone(3);
}
Serial.print("Temperature: ");
Serial.print(objTemp);
Serial.println(" degC");
Serial.print(ambTemp);
Serial.println(" degC");
Serial.println("");
Serial.print ("BPM: ");
Serial.println(beatAvg);
delay(500);
}
Thank you very much!