#include <Adafruit_BMP280.h>
// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, public domain
#define BLYNK_PRINT Serial
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <DHT.h>
#define DHTPIN 12 // what digital pin we're connected to
#define BMP_SCK 13
#define BMP_MISO 4
#define BMP_MOSI 14
#define BMP_CS 5
// Uncomment whatever type you're using!
//#define DHTTYPE DHT11 // DHT 11
#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
Adafruit_BMP280 bme(BMP_CS, BMP_MOSI, BMP_MISO, BMP_SCK);
float pressure; //To store the barometric pressure (Pa)
float temperature; //To store the temperature (oC)
float SLpressure_mB;
int ELEVATION = 0; //PUT HERE THE ELEVATION OF YOUR LOCATION IN METERS
DHT dht(DHTPIN, DHTTYPE);
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "the autho key is legit, believe me!";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "The Empire Strikes back";
char pass[] = "xxx9023xxx";
BlynkTimer timer;
void myTimerEvent()
{
// You can send any value at any time.
// Please don't send more that 10 values per second.
Blynk.virtualWrite(V3, dht.readTemperature());
Blynk.virtualWrite(V5, dht.readHumidity());
Blynk.virtualWrite(V4, SLpressure_mB);
Blynk.virtualWrite(V2, ELEVATION);
}
void setup() {
Serial.begin(115200);
if (!bme.begin()) {
Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
while (1);
}
Serial.println("DHTxx test!");
dht.begin();
Blynk.begin(auth, ssid, pass);
// You can also specify server:
//Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 8442);
//Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442);
// Setup a function to be called every 30 seconds
timer.setInterval(30000L, myTimerEvent);
}
void loop() {
// Wait a few seconds between measurements.
delay(5000);
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
// Read temperature as Fahrenheit (isFahrenheit = true)
//float f = dht.readTemperature(true);
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// Compute heat index in Fahrenheit (the default)
//float hif = dht.computeHeatIndex(f, h);
// Compute heat index in Celsius (isFahreheit = false)
//float hic = dht.computeHeatIndex(t, h, false);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.println(" *C ");
/*
Serial.print(f);
Serial.print(" *F\t");
Serial.print("Heat index: ");
Serial.print(hic);
Serial.print(" *C ");
Serial.print(hif);
Serial.println(" *F");
*/
//BMP280 SENSOR READINGS
pressure = bme.readPressure();
//temperature = bme.readTemperature();
SLpressure_mB = (((pressure)/pow((1-((float)(bme.readAltitude(1019)))/44330), 5.255))/100.0);
//Print values to serial monitor:
Serial.print(F("Pressure: "));
Serial.print(pressure, 2);
Serial.println(" Pa");
Serial.print("Equivalent Sea Level Pressure: ");
Serial.print(SLpressure_mB, 2);
Serial.println(" mB");
Serial.print(F("Approx altitude = "));
Serial.print(bme.readAltitude(1019)); // this should be adjusted to local forcase
Serial.println(" m");
ELEVATION = bme.readAltitude(1019);
//END BMP280 SENSOR READINGS
Blynk.run();
timer.run(); // Initiates BlynkTimer
}
I am not sure if the SPI library, does any interference with your libraries. All my Virtual pins are on PUSH interval settings.
