/* # This sample codes is for testing the BMP280. # Editor : ProjectHub # Date : 2020.06.06 # Ver : 1.0 # Product: pH meter */ #include <Wire.h> #include <SPI.h> #include <Adafruit_BMP280.h> Adafruit_BMP280 bmp; void setup() { Serial.begin(9600); Serial.println(F("BMP280 test")); if (!bmp.begin()) { Serial.println(F("Could not find a valid BMP280 sensor, check the wiring!")); while (1); } /* Default settings from datasheet. */ bmp.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */ Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */ Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */ Adafruit_BMP280::FILTER_X16, /* Filtering. */ Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */ } void loop() { Serial.print(F("Temperature = ")); Serial.print(bmp.readTemperature()); Serial.println(" *C"); Serial.print(F("Pressure = ")); Serial.print(bmp.readPressure()); Serial.println(" Pa"); Serial.print(F("Approx altitude = ")); Serial.print(bmp.readAltitude(1013.25)); /* Adjusted to local forecast! */ Serial.println(" m"); Serial.println(); delay(2000); }