Haneef Puttur

Solar Powered Weather Station using Arduino and BME280

Haneef Puttur

Requirement :

Developing a solar powered weather station which will monitor Temperature. Pressure, Humidity and Altitude from Sea Level.

Parts Required

Arduino Uno

 

Parts images:

LCD

Potentiometer (To adjust brightness)

Arduino Uno

Powerbank with Solar Panel

Connection Details :

 

 

BME280 — Connection 

LCD Connection 

Library Required:

Download BME280 Library and copy to Adrduino library folder from this link : https://github.com/sparkfun/SparkFun_BME280_Arduino_Library

Download the zip file , extract to a folder SparkFun_BME280_Arduino_Library  , then copy the folder to C:\Program Files (x86)\Arduino\libraries (If you are using Windows)

Code 

#include <stdint.h>
#include "SparkFunBME280.h"
#include "Wire.h"
#include "SPI.h"
#include <LiquidCrystal.h>

//Connect Vin to 3.3V.
//Connect GND to ground
//Connect the SCK pin to Digital #13
//Connect the SDO pin to Digital #12
//Connect the SDI pin to Digital #11
//Connect the CS pin Digital #10

/*
  The circuit:
 * LCD RS pin to digital pin 9
 * LCD Enable pin to digital pin 8
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3
 * LCD D7 pin to digital pin 2
 * LCD R/W pin to ground
 * LCD VSS pin to ground
 * LCD VCC pin to 5V
 * 10K Potentiometer: First pin to +5V, Middle Pin to Vo, Third Pin to GND  
coding by haneefputtur.com
*/
//Global sensor object

 
BME280 mySensor;
LiquidCrystal lcd(9, 8, 5, 4, 3, 2);
 
void setup()
{
 Serial.begin(9600);
 //SPI
 mySensor.settings.commInterface = SPI_MODE;
 mySensor.settings.chipSelectPin = 10;
 
 //Operation settings
 mySensor.settings.runMode = 3; //Normal mode
 mySensor.settings.tStandby = 0;
 mySensor.settings.filter = 0;
 mySensor.settings.tempOverSample = 1;
 mySensor.settings.pressOverSample = 1;
 mySensor.settings.humidOverSample = 1;
 
 //Start LCD
 lcd.begin(16, 2);
 // Print a logo message to the LCD.
 lcd.print("Haneef Puttur");
 lcd.setCursor(0, 1);
 lcd.print("haneefputtur.com");
 delay (2500);
 lcd.clear();

 // Print another message to the LCD.
 lcd.setCursor(0, 0);
 lcd.print("Weather");
 lcd.setCursor(0, 1);
 lcd.print("Project");
 delay (2500);
 
 
 
 lcd.clear();
 lcd.setCursor(1, 0);
 lcd.print("Starting");
 lcd.setCursor(1, 1); 
 lcd.print("BME280");
 
// Serial.print("Starting BME280... result of .begin(): 0x");
 delay(10); //BME280 requires 2ms to start up.
 Serial.println(mySensor.begin(), HEX);
 
}
 
void loop()
{
 //Each loop, take a reading.
 
 delay(5000); 
 lcd.clear();
 lcd.setCursor(1, 0);
 lcd.print("Temperature:");
 lcd.setCursor(1, 1); 
 lcd.print(mySensor.readTempF(), 2);
 lcd.print(" degrees F");
 
 //pressure
 delay(5000); 
 lcd.clear();
 lcd.setCursor(1, 0);
 lcd.print("Pressure: ");
 
 lcd.setCursor(1, 1); 
 lcd.print(mySensor.readFloatPressure(), 2);
 lcd.print(" Pa");

 
 delay(5000); 
 lcd.clear();
 lcd.setCursor(1, 0);
 lcd.print("Altitude: "); 
 lcd.setCursor(1, 1); 
 lcd.print(mySensor.readFloatAltitudeMeters(), 2);
 lcd.println(" Mtrs");
 
 
 
// Serial.print("Altitude: ");
// Serial.print(mySensor.readFloatAltitudeFeet(), 2);
// Serial.println("ft"); 
 
 delay(5000); 
 lcd.clear();
 lcd.setCursor(1, 0);
 lcd.print("%RH:"); 
 lcd.setCursor(1, 1); 
 lcd.print(mySensor.readFloatHumidity(), 2);
 lcd.println(" %");
 
 
 
 // Serial.println();
 
 delay(1000);
 
}

After testing Pack the unit so that Arduino board is inside the box, Sensor BME 280 is outside the box suitable packed. Connect the USB cable of Arduino to Solar Power Bank.

 

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