Vic

KENYA • + Follow

Vic

KENYA
- 0
- 0
1

Components

	DHT-22FLAT	x 1
	LDR-3535CNZ V310-M0VB0L0 LEDESTAR	x 1
	ESP8266 4MB WIFI 开发板	x 1
	Breadboard 830 Point Solderless PCB Bread Board MB-102 MB102 Test Develop DIY	x 1
	0797580016 Molex	x 1

Tools, APP Software Used etc.

	arduino IDE Arduino
	ThingSpeak ThingSpeak

Description

Smart weather station

Step into the future of weather monitoring with our Smart Weather Station. This innovative device combines advanced sensors and cloud-based platforms to provide a comprehensive solution for collecting, analyzing, and sharing real-time weather information.

Key Features:

Precision Sensors:

Equipped with high-precision sensors, our Smart Weather Station captures accurate data on temperature, humidity, atmospheric pressure, wind speed, and more. Get real-time insights into the ever-changing weather conditions with unparalleled accuracy.

Seamless Connectivity:

Connect to the station effortlessly via wireless technology, ensuring hassle-free integration into your digital ecosystem. Whether you're at home, in the office, or on the go, stay informed about local weather conditions with ease.

Cloud-Based Analytics:

Leverage the power of cloud-based platforms for in-depth data analysis. Our Smart Weather Station not only collects data but also employs sophisticated analytics tools to provide meaningful insights, trends, and forecasts for a comprehensive understanding of local weather patterns.

User-Friendly Interface:

Access the weather data through an intuitive and user-friendly interface, whether on your computer, tablet, or smartphone. Stay informed with easy-to-understand visuals and customizable notifications tailored to your preferences.

Real-Time Sharing:

Share real-time weather updates effortlessly with friends, family, or the broader community. Enhance community awareness, plan outdoor activities with confidence, and contribute to a network of weather enthusiasts.

Code

Project code

C/C++

#include <DHT.h>  // Including library for dht
 
#include <ESP8266WiFi.h>
 
String apiKey = "0F6JN171PZJU8SGT";     //  Enter your Write API key from ThingSpeak
 
const char *ssid =  "dekut";     // replace with your wifi ssid and wpa2 key
const char *pass =  "dekut@ict2023";
const char* server = "api.thingspeak.com";
const int LDR_PIN = A0; // Define the analog pin connected to the LDR
const int rainSensorPin = D2;  // Digital pin connected to the rain sensor
 
#define DHTPIN 0          //pin where the dht11 is connected
 
DHT dht(DHTPIN, DHT11);
 
WiFiClient client;
 
void setup() 
{
       Serial.begin(115200);
       delay(10);
       dht.begin();
 
       Serial.println("Connecting to ");
       Serial.println(ssid);
 
 
       WiFi.begin(ssid, pass);
 
      while (WiFi.status() != WL_CONNECTED) 
     {
            delay(500);
            Serial.print(".");
     }
      Serial.println("");
      Serial.println("WiFi connected");
 
}
void loop()
{
  int ldrValue =analogRead(LDR_PIN); // Read the LDR value
  Serial.print("LDR Value: ");
  Serial.println(ldrValue);
 
 int sensorValue = analogRead(rainSensorPin); // Read the analog value from the rain sensor
  float voltage = sensorValue*(3.3/1023);  // Convert analog value to voltage (adjust for your VCC)
  
  // Use a calibration factor based on your specific sensor and environment to convert voltage to rainfall in mm
  float rainFallMM = voltage * 100;  // Example calibration factor: 100 mm/V
  
      float h = dht.readHumidity();
      float t = dht.readTemperature();
      
      
              if (isnan(h) || isnan(t)) 
                 {
                     Serial.println("Failed to read from DHT sensor!");
                      return;
                 }
 
                         if (client.connect(server,80))   //   "184.106.153.149" or api.thingspeak.com
                      {  
                            
                             String postStr = apiKey;
                             postStr +="&field1=";
                             postStr += String(t);
                             postStr +="&field2=";
                             postStr += String(h);
                             postStr +="&field3=";
                             postStr += String(ldrValue);
                             postStr +="&field4=";
                             postStr += String(rainFallMM);
                             postStr += "\r\n\r\n";
 
                             client.print("POST /update HTTP/1.1\n");
                             client.print("Host: api.thingspeak.com\n");
                             client.print("Connection: close\n");
                             client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
                             client.print("Content-Type: application/x-www-form-urlencoded\n");
                             client.print("Content-Length: ");
                             client.print(postStr.length());
                             client.print("\n\n");
                             client.print(postStr);
 
                              Serial.print("Sensor Value: ");
                              Serial.print(sensorValue);
                              Serial.print("  Voltage (V): ");
                              Serial.print(voltage, 2);  // Display voltage with 2 decimal places
                              Serial.print("  Rainfall (mm): ");
                              Serial.println(rainFallMM, 2);  // Display rainfall with 2 decimal places


                              Serial.print("Temperature: ");
                             Serial.print(t);
                             Serial.print(" degrees Celcius, Humidity: ");
                             Serial.print(h);
                             Serial.print("ldrValue: ");
                             Serial.print(ldrValue);
                             Serial.println("%. Send to Thingspeak.");
                        }
          client.stop();
 
          Serial.println("Waiting...");
  
  // thingspeak needs minimum 15 sec delay between updates
  delay(1000);
}

Jan 16,2024

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