M5Atom で ENV II Unit を動かすサンプルです。

env2atom.ino

// ENVII Read test for M5Atom
// 2020/5/22 @ksasao
// see https://twitter.com/ksasao/status/1263830103819055104
/*Please install the < Adafruit BMP280 Library > （https://github.com/adafruit/Adafruit_BMP280_Library）
 * from the library manager before use. 
 *This code will display the temperature, humidity and air pressure information on the screen*/

#include <M5Atom.h>
#include <Wire.h>
#include "Adafruit_Sensor.h"
#include <Adafruit_BMP280.h>
#include "SHT3X.h"
SHT3X sht30;
Adafruit_BMP280 bme;

float tmp = 0.0;
float hum = 0.0;
float pressure = 0.0;

void setup() {
  M5.begin(true, false, true);
  Wire.begin(26,32);
  Serial.println(F("ENV Unit(SHT30 and BMP280) test..."));

  while (!bme.begin(0x76)){  
    Serial.println("Could not find a valid BMP280 sensor, check wiring!");
  }

}

void loop() {
  pressure = bme.readPressure();
  if(sht30.get()==0){
    tmp = sht30.cTemp;
    hum = sht30.humidity;
  }
  Serial.printf("Temperatura: %2.2f*C  Humedad: %0.2f%%  Pressure: %0.2fPa\r\n", tmp, hum, pressure);

  delay(1000);

}