Programing question for MAX30102, ask user to select the ability

Guys, I’m a new user for arduino, I’m using a max30102 HR and SpO2 sensor, I want user to type 1 or 2 on command widow or where to select it to test HR and SpO2 or the temperature, but it always just show the HR and SpO2. Here is my code any one can help to fix it?

#include <Wire.h>
#include “MAX30105.h”
#include “spo2_algorithm.h”
#include “heartRate.h”

MAX30105 particleSensor;

#define MAX_BRIGHTNESS 255

#if defined(AVR_ATmega328P) || defined(AVR_ATmega168)
//Arduino Uno doesn’t have enough SRAM to store 100 samples of IR led data and red led data in 32-bit format
//To solve this problem, 16-bit MSB of the sampled data will be truncated. Samples become 16-bit data.
uint16_t irBuffer[100]; //infrared LED sensor data
uint16_t redBuffer[100]; //red LED sensor data
uint32_t irBuffer[100]; //infrared LED sensor data
uint32_t redBuffer[100]; //red LED sensor data

int32_t bufferLength; //data length
int32_t spo2; //SPO2 value
int8_t validSPO2; //indicator to show if the SPO2 calculation is valid
int32_t heartRate; //heart rate value
int8_t validHeartRate; //indicator to show if the heart rate calculation is valid

byte pulseLED = 11; //Must be on PWM pin
byte readLED = 13; //Blinks with each data read
int x;

void setup()
Serial.println(“Please select 1 for HR and SPO2,2 for temperature”);
Serial.begin(115200); // initialize serial communication at 115200 bits per second:

pinMode(pulseLED, OUTPUT);
pinMode(readLED, OUTPUT);

// Initialize sensor
if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) //Use default I2C port, 400kHz speed
Serial.println(F(“MAX30105 was not found. Please check wiring/power.”));
while (1);

if (x=1){
Serial.println(F(“Attach sensor to finger with rubber band. Press any key to start conversion”));
while (Serial.available() == 0) ; //wait until user presses a key;

byte ledBrightness = 60; //Options: 0=Off to 255=50mA
byte sampleAverage = 4; //Options: 1, 2, 4, 8, 16, 32
byte ledMode = 2; //Options: 1 = Red only, 2 = Red + IR, 3 = Red + IR + Green
byte sampleRate = 100; //Options: 50, 100, 200, 400, 800, 1000, 1600, 3200
int pulseWidth = 411; //Options: 69, 118, 215, 411
int adcRange = 4096; //Options: 2048, 4096, 8192, 16384

particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange); //Configure sensor with these settings
if (x=2){

void loop()
if (x=1){
if (x=2){


void HRandSPO2(){
bufferLength = 100; //buffer length of 100 stores 4 seconds of samples running at 25sps

//read the first 100 samples, and determine the signal range
for (byte i = 0 ; i < bufferLength ; i++)
while (particleSensor.available() == false) //do we have new data?
particleSensor.check(); //Check the sensor for new data

redBuffer = particleSensor.getRed();
_ irBuffer = particleSensor.getIR();_
* particleSensor.nextSample(); //We’re finished with this sample so move to next sample*
* Serial.print(F(“red=”));*
_ Serial.print(redBuffer*, DEC);
Serial.print(F(", ir="));
Serial.println(irBuffer, DEC);
//calculate heart rate and SpO2 after first 100 samples (first 4 seconds of samples)_

maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate);
_ //Continuously taking samples from MAX30102. Heart rate and SpO2 are calculated every 1 second*
* while (1)
//dumping the first 25 sets of samples in the memory and shift the last 75 sets of samples to the top*

* for (byte i = 25; i < 100; i++)
redBuffer[i - 25] = redBuffer;
irBuffer[i - 25] = irBuffer;
//take 25 sets of samples before calculating the heart rate.
for (byte i = 75; i < 100; i++)
while (particleSensor.available() == false) //do we have new data?
particleSensor.check(); //Check the sensor for new data*

* digitalWrite(readLED, !digitalRead(readLED)); //Blink onboard LED with every data read*
redBuffer = particleSensor.getRed();
irBuffer = particleSensor.getIR();
* particleSensor.nextSample(); //We’re finished with this sample so move to next sample*
* //send samples and calculation result to terminal program through UART*
* Serial.print(F(“red=”));
Serial.print(redBuffer, DEC);
Serial.print(F(", ir="));
Serial.print(irBuffer, DEC);
Serial.print(F(", HR="));
Serial.print(heartRate, DEC);
Serial.print(F(", HRvalid="));
Serial.print(validHeartRate, DEC);
Serial.print(F(", SPO2="));
Serial.print(spo2, DEC);
Serial.print(F(", SPO2Valid="));
Serial.println(validSPO2, DEC);
//After gathering 25 new samples recalculate HR and SP02*

* maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate);*
* }
void Temperature(){
float temperature = particleSensor.readTemperature();
temperature = temperature+4;
Serial.print(temperature, 4);
float temperatureF = particleSensor.readTemperatureF(); //Because I am a bad global citizen*

* Serial.print(" temperatureF=");
Serial.print(temperatureF, 4);


 if (x=1){

= is assignment, == is comparison, this needs to change throughout your code

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