Blynk IoT Alternative Modules

#define BLYNK_TEMPLATE_ID "TMPLxxxxxx"
#define BLYNK_TEMPLATE_NAME "Device"
#define BLYNK_AUTH_TOKEN "YourAuthToken"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char ssid[] = "NetworkName";
char pass[] = "Password";

void setup() {
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

void loop() {
  Blynk.run();
}

#define BLYNK_TEMPLATE_ID "TMPLxxxxxx"
#define BLYNK_TEMPLATE_NAME "Device"
#define BLYNK_AUTH_TOKEN "YourAuthToken"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>

char ssid[] = "NetworkName";
char pass[] = "Password";

#define DHTPIN 4      // GPIO 4
#define DHTTYPE DHT11
#define FLAME_PIN 14  // GPIO 14 (Digital Input)
#define BUZZER_PIN 12 // GPIO 12 (Digital Output)

DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

void sensorAlgorithm() {
  float temp = dht.readTemperature();
  int flameStatus = digitalRead(FLAME_PIN); // LOW means FIRE
  
  Blynk.virtualWrite(V2, temp); // Send Temp to V2 channel on dashboard
  
  // If temp > 35 OR flame is detected:
  if (temp > 35.0 || flameStatus == LOW) { 
    digitalWrite(BUZZER_PIN, HIGH); // Sound Alarm!
    Blynk.logEvent("fire_alert", "Warning! Fire or Extreme Heat!"); // Phone Notification
  } else {
    digitalWrite(BUZZER_PIN, LOW); // Safe
  }
}

void setup() {
  Serial.begin(115200);
  pinMode(FLAME_PIN, INPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  dht.begin();
  
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  timer.setInterval(2000L, sensorAlgorithm);
}

void loop() {
  Blynk.run(); 
  timer.run();
}

#define BLYNK_TEMPLATE_ID "TMPLxxxxxx"
#define BLYNK_TEMPLATE_NAME "Device"
#define BLYNK_AUTH_TOKEN "YourAuthToken"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char ssid[] = "NetworkName";
char pass[] = "Password";

#define PUMP_PIN 5 // GPIO 5
BlynkTimer timer;

int modeStatus = 0; // 0=Manual, 1=Auto
int dryThreshold = 1500;

// V2 Switch (Auto/Manual Mode Selector)
BLYNK_WRITE(V2) {
  modeStatus = param.asInt();
}

// V0 Manual Watering Button
BLYNK_WRITE(V0) {
  if (modeStatus == 0) { // ONLY works in Manual mode
    digitalWrite(PUMP_PIN, param.asInt());
  }
}

void autoGreenhouseLogic() {
  int soilMoisture = analogRead(34);
  Blynk.virtualWrite(V1, soilMoisture); // Send data to SuperChart on V1
  
  if (modeStatus == 1) { // If system is in AUTO mode, let the code decide
    if (soilMoisture < dryThreshold) {
      digitalWrite(PUMP_PIN, HIGH); // Soil is dry: Turn pump ON
    } else {
      digitalWrite(PUMP_PIN, LOW);  // Soil is wet: Turn pump OFF
    }
  }
}

void setup() {
  Serial.begin(115200);
  pinMode(PUMP_PIN, OUTPUT);
  digitalWrite(PUMP_PIN, LOW);
  
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  timer.setInterval(3000L, autoGreenhouseLogic);
}

void loop() {
  Blynk.run(); 
  timer.run();
}