Arduino IDE: M5Stack Core 2 with ENVIII Temperature / Humidity sensor and battery level

M5Stack.ino

#include <M5Core2.h>
#include <M5_ENV.h>

SHT3X sht30;

float temperature = 0.0;
float humidity = 0.0;

void setup() {
    M5.begin(); // Init M5Core2.
    M5.lcd.setTextSize(3);
    Wire.begin(); // Wire init, adding the I2C bus.
    M5.lcd.println(F("Master Bed\r\n"));
}

void loop() {
    if (sht30.get() == 0) {  // Obtain the data of shT30
        temperature = sht30.cTemp;  // Store the temperature obtained from shT30.
        humidity = sht30.humidity;  // Store the humidity obtained from the SHT30.
    } else {
        temperature = 0;
        humidity = 0;
    }
    
    M5.lcd.fillRect(0, 20, 100, 60, BLACK);  // Fill the screen with black (to clear the screen).
    
    M5.lcd.setCursor(0, 20);

    float batVoltage = M5.Axp.GetBatVoltage();
    float batPercentage = ( batVoltage < 3.2 ) ? 0 : ( batVoltage - 3.2 ) * 100;    
    
    M5.Lcd.printf("\r\n\r\nTemp: %2.1f C \r\n\r\nHumidity: %2.0f %%  \r\n\r\nPower: %2.0f %%", temperature, humidity, batPercentage);  
    
    delay(2000);
}