esp32-node/src/BME280.cpp

#include "BME280.h"

#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

BME280::BME280() {}

bool BME280::begin(void) {
//  SPI.begin(BME_SCK, BME_MISO, BME_MOSI, BME_CS);
  pinMode(18, OUTPUT);
  digitalWrite(18, HIGH); // disable LoRa_CS
  pinMode(23, OUTPUT);
  digitalWrite(23, HIGH);  // enable bme280 CS
  delay(50);
  bme = new Adafruit_BME280(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
  int retries = 0;
  while (!(status = bme->begin())) {
    if (retries > 5) break;
    retries++;
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
//    bme->reset();
    delay(500);
  }
  if (!status) return false;
  return true;
}

void BME280::printValues() {
    Serial.print("Temperature = ");
    Serial.print(bme->readTemperature());
    Serial.println(" *C");

    Serial.print("Pressure = ");

    Serial.print(bme->readPressure() / 100.0F);
    Serial.println(" hPa");

    Serial.print("Approx. Altitude = ");
    Serial.print(bme->readAltitude(SEALEVELPRESSURE_HPA));
    Serial.println(" m");

    Serial.print("Humidity = ");
    Serial.print(bme->readHumidity());
    Serial.println(" %");

    Serial.println();
}

float BME280::readTemperature(void) { return bme->readTemperature(); }
float BME280::readPressure(void) { return bme->readPressure() / 100.0F; }
float BME280::readHumidity(void) { return bme->readHumidity(); }