Adafruit_MLX90614 and MAX30102 Not working

[fervidautomation]

Hello Sir, thank you for sharing such excellent work.

I tried to use ESP32 wroom dev board and use Adafruit_MLX90614 and MAX30102 sensor on I2C communication. As you might know both works on I2C communication. but It did not work. Any piece of advice will be highly appreciated.

[stevemarple]

At this stage the only advice I can give is to submit more detailed error reports. Wiring details, pins used etc are all useful and sometimes necessary information. The Adafruit_MLX90614 library uses the Wire (hardware I2C) library. I have a library (https://github.com/stevemarple/MLX90614) that supports the MLX90614 and it uses SoftWire.

[fervidautomation]

Thank you for your response. Please find my code below. I am getting the reading for MAX30102 only but not for MLX90614. both are working on I2C. I did change pin for MAX30102 but still, code is not working.

include

include "MAX30105.h"

include

MAX30105 particleSensor; // initialize MAX30102 with I2C

TwoWire I2CBME = TwoWire(0);

define IR1 0x5A

define I2C_SDA 33 //21

define I2C_SCL 32 //22

Adafruit_MLX90614 mlx = Adafruit_MLX90614(IR1); void setup() { Serial.begin(115200); while(!Serial); //We must wait for Teensy to come online mlx.begin(); I2CBME.begin(I2C_SDA, I2C_SCL, I2C_SPEED_FAST);

delay(100); Serial.println(""); Serial.println("MAX30102"); Serial.println(""); delay(100); // Initialize sensor // if (particleSensor.begin(Wire, I2C_SPEED_FAST) == false) //Use default I2C port, 400kHz speed if (!particleSensor.begin(I2CBME, I2C_SPEED_FAST ,0x57)) { Serial.println("MAX30102 was not found. Please check wiring/power. "); while (1); }

byte ledBrightness = 70; //Options: 0=Off to 255=50mA byte sampleAverage = 1; //Options: 1, 2, 4, 8, 16, 32 byte ledMode = 2; //Options: 1 = Red only, 2 = Red + IR, 3 = Red + IR + Green int sampleRate = 400; //Options: 50, 100, 200, 400, 800, 1000, 1600, 3200 int pulseWidth = 69; //Options: 69, 118, 215, 411 int adcRange = 16384; //Options: 2048, 4096, 8192, 16384

particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange); //Configure sensor with these settings }

void loop() { particleSensor.check(); //Check the sensor while (particleSensor.available()) { // read stored IR Serial.print(particleSensor.getFIFOIR()); Serial.print(","); // read stored red Serial.println(particleSensor.getFIFORed()); // read next set of samples particleSensor.nextSample();
delay(1000);
} Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempC()); Serial.print("C\tObject = "); Serial.print(mlx.readObjectTempC()); Serial.println("C"); Serial.print("Ambient = "); Serial.print(mlx.readAmbientTempF()); Serial.print("F\tObject = "); Serial.print(mlx.readObjectTempF()); Serial.println("F"); Serial.println(); delay(1000); }

[stevemarple]

The code you posted uses the Wire library. Does MAX30105.h include or somehow use SoftWire?

[fervidautomation]

I am stuck into this problem to use these 2 sensor on esp32, does softwire, can help me?

[stevemarple]

So you aren't using SoftWire? Please report any software bugs you find to the appropriate place. Do not use abuse issue trackers as a personal helpline. The majority of authors of open-source software contribute their time for free.