Published January 30, 2018 © MIT

Blynk Weather Station

Receive weather updates directly to your mobile device from your very own weather station! Astonishingly quick & easy build with ☒CHIPS.

BeginnerFull instructions provided5 minutes4,154

Things used in this project

Hardware components

XinaBox SL01

Software apps and online services

Arduino IDE

Blynk

Story

Introduction

I built this project using XinaBox ☒CHIPS and Arduino IDE. It is a 5 min project , that allows you to receive weather data on your phone via the Blynk app and on the OLED screen of the OD01. This project is so useful because you can monitor weather wherever you choose and get updates directly on your phone via the app. I chose to use the ☒CHIPS because they are user friendly, they also eliminate the need for soldering and serious circuit design. Using Arduino IDE I could easily program the ☒CHIPS.

Step 1: Downloading the Libraries

Go to Github.xinabox

Download xCore ZIP

Install it into Arduino IDE by going to "Sketch", "Include Library", then "Add .ZIP Library". As seen below

Figure 1: Adding the ZIP libraries

Download xSW01 ZIP

Add the library the same way as you did for the xCore.

Repeat for the xSL01 and xOD01

You also need install the Blynk library so you can use the app. You can find it here

Before you can programme you need to ensure you're using the correct board. In this project I make use of the Generic ESP8266 which is in the CW01 ☒CHIP. You can download the board library here.

Step 2: Programming

Connect the IP01, CW01, SW01, SL01 and OD01 using ☒BUS Connectors. Make sure the ☒CHIPS' names are orientated correctly.

Figure 2: Connected ☒CHIPS

Now insert the IP01 and connected ☒CHIPS into an available USB port.

Download or copy and paste the code from the "CODE" heading into your Arduino IDE. Enter your auth token, WiFi name and password where indicated.

Alternatively you could create your own code using the relevant principles to achieve the same objective

To ensure there are no errors compile the code.

Step 3: Blynk Setup

After installing the Blynk app free from your app store it is time to do the Project Setup.

Before clicking "Log In" after entering your email address and password ensure your "Server Settings" are set to "BLYNK".

Figure 3: Server Settings

Create New Project.

Choose device "ESP8266"

Figure 4: Choosing the device/board

Assign a project name

Receive "Auth Token" notification and email containing the "Auth Token".

Figure 5: Auth Token notification

Go to the "Widget Box"

Figure 6: Widget Box

Add 4 "Buttons" and 4 "Value Displays"

Assign the respective "Buttons" and "Value Displays" their Virtual Pins as specified in the "CODE". I used even numbers for "Buttons" and corresponding odd numbers for the "Value Displays"

This setup can be adjusted to suit your needs as you adjust your code.

Figure 7: Project Dashboard (Disclaimer: Ignore the values this is a screenshot after I tested the weather station. Your should be similar, just with blank faces like V7)

Step 4: Uploading the code

After successful compilation in Step 2(no errors found) you may upload the code to your ☒CHIPS. Ensure the switches are facing "B" and "DCE" respectively before uploading.

Once the upload is successful, open the Blynk app on your mobile device.

Open your project from Step 3.

Figure 8

Press play and press the respective "Buttons" so that the data can be shown in your app and on the OLED screen.

Now your Blynk weather station is ready to GO!

Blynk_Weather_Station.ino

#include <xCore.h>                    //include core library
#include <xSW01.h>                    //include weather sensor library
#include <xSL01.h>                    //include light sensor library
#include <ESP8266WiFi.h>              //include ESP8266 library for WiFi
#include <BlynkSimpleEsp8266.h>       //include Blynk library for use with ESP8266
#include <xOD01.h>                    //include OLED library

xSW01 SW01;
//xSL01 SL01;
float TempC;
float Humidity;
float UVA;
float UV_Index;

// authentication token that was emailed to you
// copy and paste the token between double quotes
char auth[] = "your auth token";

// your wifi credentials
char WIFI_SSID[] = "your WiFi name";         // enter your wifi name between the double quotes
char WIFI_PASS[] = "your WiFi password";        // enter your wifi password between the double quotes



BlynkTimer timer;


  // VirtualPin for Temperature
  
  BLYNK_WRITE(V2){
  int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
  if(pinValue == 1) {
  Blynk.virtualWrite(V1, TempC);
  OD01.println("Temp_C:");
  OD01.println(TempC);
  } 
  else{
     
  }

  }
  
  // VirtualPin for Humidity
  
  BLYNK_WRITE(V4){
  int pin_value = param.asInt(); // assigning incoming value from pin V3 to a variable
  if(pin_value == 1) {
  Blynk.virtualWrite(V3, Humidity);
  OD01.println("Humidity:");
  OD01.println(Humidity);
  } 
  else{
     
  }

  }

// VirtualPin for UVA
  
  BLYNK_WRITE(V6){
  int pinvalue = param.asInt(); // assigning incoming value from pin V5 to a variable
  if(pinvalue == 1) {
  Blynk.virtualWrite(V5, UVA);
  OD01.println("UVA:");
  OD01.println(UVA);
  } 
  else{
     
  }

  }
  // VirtualPin for UV_Index
  
  BLYNK_WRITE(V8){
  int pin_Value = param.asInt(); // assigning incoming value from pin V7 to a variable
  if(pin_Value == 1) {
  Blynk.virtualWrite(V7, UV_Index);
  OD01.println("UV_Index:");
  OD01.println(UV_Index);
  } 
  else{
     
  }

  }
  

void setup() 
{
  // Debug console
  TempC = 0;
  Serial.begin(115200);
  Wire.begin(2, 14);
  SW01.begin();
  OLED.begin();
  SL01.begin();
  Blynk.begin(auth, WIFI_SSID, WIFI_PASS);
  delay(2000);

}

void loop() 
{
  
  SW01.poll();
  TempC = SW01.getTempC(); 
  Humidity = SW01.getHumidity();
  SL01.poll();
  UVA = SL01.getUVA();
  UV_Index = SL01.getUV Index();
  Blynk.run();
  

}

Credits

Brittany Bull

13 projects • 8 followers

A student exploring the world of coding and IoT from a beginners' perspective