Hello everyone,
hope you are fine and doing well. I am working of athlete's fitness monitor project. For that, I have to sense heart rate and body temperature sensor in real time. I have used max 30102 for heart rate and mlx 90614 for body tempearture. I am using esp 32 as micro-controller. Individually, they are working perfectly fine but when i tried to integate both sensors they are compiled and uploaded successfully. But serial monitor is showing following:
I have used code which is attached below:
#include <Adafruit_MLX90614.h>
#include <Wire.h>
#include "MAX30105.h"
#include "heartRate.h"
MAX30105 particleSensor;
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;
Adafruit_MLX90614 mlx = Adafruit_MLX90614();
void setup() {
Serial.begin(115200);
while (!Serial);
if (!mlx.begin()) {
Serial.println("Error connecting to MLX sensor. Check wiring.");
while (1);
};
if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) //Use default I2C port, 400kHz speed
{
Serial.println("MAX30105 was not found. Please check wiring/power. ");
while (1);
}
Serial.println("Place your index finger on the sensor with steady pressure.");
particleSensor.setup(); //Configure sensor with default settings
particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running
particleSensor.setPulseAmplitudeGreen(0); //Turn off Green LED
}
void temp()
{Serial.print("Ambient temperature = ");
double amc = mlx.readAmbientTempC();
Serial.print(amc);
Serial.print("°C");
Serial.print(" ");
Serial.print("Object temperature = ");
double obc = mlx.readObjectTempC();
Serial.print(obc);
Serial.println("°C");
Serial.print("Ambient temperature = ");
double amf = mlx.readAmbientTempF();
Serial.print(amf);
Serial.print("°F");
Serial.print(" ");
Serial.print("Object temperature = ");
double obf = mlx.readObjectTempF();
Serial.print(obf);
Serial.println("°F");
Serial.println("-----------------------------------------------------------------");
delay(1000);
}
void HR()
{
long irValue = particleSensor.getIR();
if (checkForBeat(irValue) == true)
{
//We sensed a beat!
long delta = millis() - lastBeat;
lastBeat = millis();
beatsPerMinute = 60 / (delta / 1000.0);
if (beatsPerMinute < 255 && beatsPerMinute > 20)
{
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.print("IR=");
//Serial.print(irValue);
//Serial.print(", BPM=");
//Serial.print(beatsPerMinute);
Serial.print(", Avg BPM=");
Serial.print(beatAvg);
if (irValue < 50000)
Serial.print(" No finger?");
Serial.println();
}
void loop() {
temp();
HR();
}`
if anyone know the solution, it will be a great help. Thank u in anticipation.
