BMP085/ESP-WROOM-02

bmp085.ino

#include <Adafruit_BMP085.h>

// Connect VCC of the BMP085 sensor to 3.3V (NOT 5.0V!)
// Connect GND to Ground
// Connect SCL to i2c clock - on '168/'328 Arduino Uno/Duemilanove/etc thats Analog 5
// Connect SDA to i2c data - on '168/'328 Arduino Uno/Duemilanove/etc thats Analog 4
// EOC is not used, it signifies an end of conversion
// XCLR is a reset pin, also not used here

Adafruit_BMP085 bmp;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Wire.begin();
  delay(1000);
  
  if (!bmp.begin()) {
    Serial.println("Could not find a valid BMP085 sensor, check wiring!");
    while (1) {}
  }
}

void loop() {
    Serial.print("celsius_temperature:");
    Serial.print(bmp.readTemperature());
    Serial.print("\t");
    
    Serial.print("pressure_pascal:");
    Serial.print(bmp.readPressure());
    Serial.print("\t");
    
    // Calculate altitude assuming 'standard' barometric
    // pressure of 1013.25 millibar = 101325 Pascal
    Serial.print("alt_meter:");
    Serial.print(bmp.readAltitude());
    Serial.print("\t");

    Serial.print("pressure_sealevel_pascal:");
    Serial.print(bmp.readSealevelPressure());
    Serial.print("\t");

  // you can get a more precise measurement of altitude
  // if you know the current sea level pressure which will
  // vary with weather and such. If it is 1015 millibars
  // that is equal to 101500 Pascals.
  //  Serial.print("real_alt_meter:");
  //  Serial.print(bmp.readAltitude(101500));
  //  Serial.print("\t");
   
    Serial.println();
    delay(5000);
}