Air Quality SEN55 Sensor Data Acquisition

#include <M5Unified.h>
#include <Wire.h>
#include <SensirionI2CSen5x.h>
 
// SEN55 instance
SensirionI2CSen5x sen5x;
 
void setup() {
  // Serial debug
  Serial.begin(115200);
 
  // Initialize the screen
  M5.begin();
  M5.Display.clear(TFT_BLACK);
  M5.Display.setTextSize(1);
  M5.Display.setTextColor(TFT_WHITE, TFT_BLACK);
 
  // I2C pins (SDA=11, SCL=12), same configuration as before for data reading
  Wire.begin(11, 12);
  // AirQ external sensor enable pin, keep LOW
  pinMode(10, OUTPUT);
  digitalWrite(10, LOW);
 
  // Initialize SEN55
  sen5x.begin(Wire);
  uint16_t err;
  char msg[128];
 
  err = sen5x.deviceReset();
  if (err) {
    errorToString(err, msg, sizeof(msg));
    Serial.println("SEN55 reset failed: " + String(msg));
  }
  // Start measurement
  err = sen5x.startMeasurement();
  if (err) {
    errorToString(err, msg, sizeof(msg));
    Serial.println("Failed to start SEN55 measurement: " + String(msg));
  }
}
 
void loop() {
  // Read every 1 second
  delay(1000);
 
  float pm1, pm2_5, pm4, pm10, hum, temp, voc, nox;
  uint16_t err = sen5x.readMeasuredValues(
    pm1, pm2_5, pm4, pm10,
    hum, temp,
    voc, nox
  );
 
  // Clear screen and reset cursor
  M5.Display.fillScreen(TFT_BLACK);
  M5.Display.setCursor(10, 10);
 
  if (err) {
    // Read error
    M5.Display.setTextColor(TFT_RED, TFT_BLACK);
    char em[64];
    errorToString(err, em, sizeof(em));
    M5.Display.printf("Read Error:\n%s", em);
  } else {
    // Display values
    M5.Display.setTextColor(TFT_WHITE, TFT_BLACK);
    M5.Display.printf("PM1.0 : %.1f ug/m3\n",   pm1);
    M5.Display.printf("PM2.5 : %.1f ug/m3\n",   pm2_5);
    M5.Display.printf("PM4.0 : %.1f ug/m3\n",   pm4);
    M5.Display.printf("PM10  : %.1f ug/m3\n\n", pm10);
    M5.Display.printf("Hum   : %.1f %%\n",      hum);
    M5.Display.printf("Temp  : %.1f C\n\n",     temp);
    M5.Display.printf("VOC   : %.1f\n",        voc);
    M5.Display.printf("NOx   : %.1f\n",        nox);
  }
  // Update M5 events (required)
  M5.update();
}