live_data.ino

void live_data()
{
  static String lastSentJsonData = ""; // Static variable to store the last sent jsonData
 
  PIRMotionVal = digitalRead(PIRMotion);
  buzzerVal=digitalRead(buzzer);
  button1Val=digitalRead(button1);
  fanVal = digitalRead (fan);
  reverseFanVal = digitalRead(reverseFan);
  button2Val=digitalRead(button2);
  servo1Val=servo_9.read();
  servo2Val=servo_10.read();
  gasSensorVal = analogRead(MQ2);
  relayVal = digitalRead(relay);
  whiteLedVal = digitalRead(whiteLed);
  photocellVal=analogRead(photocell);
  soilSensorVal = analogRead(soil);
  steamSensorVal = analogRead(steam);

   // Create a JSON-like string of sensor data
String jsonData = "{\"PIRMotionVal\":" + String(PIRMotionVal) +
                  ",\"buzzerVal\":" + String(buzzerVal) +
                  ",\"button1Val\":" + String(button1Val) +
                  ",\"yellowLedVal\":" + String(yellowLedBrightness) +
                  ",\"fanVal\":" + String(fanVal) +
                  ",\"reverseFanVal\":" + String(reverseFanVal) +
                  ",\"button2Val\":" + String(button2Val) +
                  ",\"servo1Val\":" + String(servo1Val) +
                  ",\"servo2Val\":" + String(servo2Val) +
                  ",\"gasSensorVal\":" + String(gasSensorVal) +
                  ",\"relayVal\":" + String(relayVal) +
                  ",\"whiteLedVal\":" + String(whiteLedVal) +
                  ",\"photocellVal\":" + String(photocellVal) +
                  ",\"soilSensorVal\":" + String(soilSensorVal) +
                  ",\"steamSensorVal\":" + String(steamSensorVal) + 
                  ",\"emergencyMode\":" + String(emergencyModeActive) + 
                  "}";
  
  loopCounter++;
  // Only send jsonData if it has changed since the last check
  if (jsonData != lastSentJsonData && emergencyModeActive?true:loopCounter % 1000 == 0) {
    Serial.println(jsonData); // Send the JSON string via Bluetooth
    lastSentJsonData = jsonData; // Update the lastSentJsonData
    loopCounter = 0; // Reset counter after sending data
  }
}