Hello i need help with a Project:
If i verify the Project it comes with Compile Errors… what is here the problem
The Error´s:
BlynkProtocol.h:225: undefined reference to BME280::init()' sketch\Solar_Powered_Weather_Station.ino.cpp.o: In function
BlynkProtocol<BlynkArduinoClientGen >::begin(char const*)’:
BlynkProtocol.h:88: undefined reference to BME280::init()' sketch\Solar_Powered_Weather_Station.ino.cpp.o: In function
BlynkWifi::begin(char const*, char const*, char const*, char const*, unsigned short)’:
BlynkSimpleEsp8266.h:74: undefined reference to BME280::getTemperature()' BlynkSimpleEsp8266.h:74: undefined reference to
BME280::getPressure()’
sketch\Solar_Powered_Weather_Station.ino.cpp.o: In function BlynkProtocol<BlynkArduinoClientGen<Client> >::connect(unsigned int)': BlynkProtocol.h:56: undefined reference to
BME280::calcAltitude(float)’
sketch\Solar_Powered_Weather_Station.ino.cpp.o: In function setup': Solar_Powered_Weather_Station.ino:53: undefined reference to
BME280::getHumidity()’
sketch\Solar_Powered_Weather_Station.ino.cpp.o:(.text.loop+0x60): undefined reference to BME280::getTemperature()' sketch\Solar_Powered_Weather_Station.ino.cpp.o:(.text.loop+0xa2): undefined reference to
BME280::getPressure()’
sketch\Solar_Powered_Weather_Station.ino.cpp.o: In function loop': Solar_Powered_Weather_Station.ino:62: undefined reference to
BME280::calcAltitude(float)’
Solar_Powered_Weather_Station.ino:69: undefined reference to `BME280::getHumidity()’
collect2.exe: error: ld returned 1 exit status
Here the Code from the .ino
//#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include "Seeed_BME280.h"
#include <Wire.h>
BME280 bme280;
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "3df5f636c7dc464a457a32e382c4796xx";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "SSID";
char pass[] = "PASS WORD";
void setup()
{
Serial.begin(9600);
Blynk.begin(auth, ssid, pass);
Serial.begin(9600);
if(!bme280.init()){
Serial.println("Device error!");
}
}
void loop()
{
Blynk.run();
//get and print temperatures
float temp = bme280.getTemperature();
Serial.print("Temp: ");
Serial.print(temp);
Serial.println("C");//The unit for Celsius because original arduino don't support speical symbols
Blynk.virtualWrite(0, temp); // virtual pin 0
Blynk.virtualWrite(4, temp); // virtual pin 4
//get and print atmospheric pressure data
float pressure = bme280.getPressure(); // pressure in Pa
float p = pressure/100.0 ; // pressure in hPa
Serial.print("Pressure: ");
Serial.print(p);
Serial.println("hPa");
Blynk.virtualWrite(1, p); // virtual pin 1
//get and print altitude data
float altitude = bme280.calcAltitude(pressure);
Serial.print("Altitude: ");
Serial.print(altitude);
Serial.println("m");
Blynk.virtualWrite(2, altitude); // virtual pin 2
//get and print humidity data
float humidity = bme280.getHumidity();
Serial.print("Humidity: ");
Serial.print(humidity);
Serial.println("%");
Blynk.virtualWrite(3, humidity); // virtual pin 3
ESP.deepSleep(5 * 60 * 1000000); // // deepSleep time is defined in microseconds. Multiply seconds by 1e6