Untitled

#include <SoftwareSerial.h>
#include "Wire.h"  

const int pressureInput = A0; 
const int pressureZero = 98.58;  
const int pressureMax = 921.6; 
const int pressuretransducermaxPSI = 30; 
const int baudRate = 9600; 
const int sensorreadDelay = 1000; 
const float psiToCmWater = 70.307; 
const float alpha = 0.95; // Increased alpha for stronger smoothing
float pressureValue = 0; 
float depthCm = 0; 

int TX=15;
int RX=14;
const String MaximumCapacity = "20";

SoftwareSerial gsm(TX,RX);

void SendMessage(){
  if(gsm.available()){
    Serial.write(gsm.read());
}

Serial.println("Sending Message...");
gsm.print("AT+CMGF=1\r");
delay(100);
gsm.print("AT+CMGS=\"+639927584492\"\r");
gsm.print("ALERT From Load Detection System of Passenger Boat!");
gsm.println();
gsm.println();
gsm.print("WARNING!! WARNING!! WARNING!!.");
gsm.println();
gsm.print("Boat is OVERLOADING.");
gsm.println();
gsm.println();
gsm.print("Information:");
gsm.println();
gsm.println();
gsm.print("Status: DOCK");
gsm.println();
gsm.print("Number of People:");
gsm.println();
gsm.print("Maximum Capacity:");
gsm.println();
gsm.print("Total Weight of Load: ");
gsm.println();
gsm.print("Maximum Capacity Level:");
gsm.print(" %");
gsm.println();
gsm.print("\r");
delay(200);
gsm.print(char(26));
delay(100);
gsm.println();
Serial.println("Sent Message");

}

void SendMessage1(){
  if(gsm.available()){
    Serial.write(gsm.read());
}

Serial.println("Sending Message...");
gsm.print("AT+CMGF=1\r");
delay(100);
gsm.print("AT+CMGS=\"+639927584492\"\r");
gsm.print("Notification From Load Detection System of Passenger Boat!");
gsm.println();
gsm.println();
gsm.print("Boat is operating in STANDARD CAPACITY.");
gsm.println();
gsm.println();
gsm.print("Information:");
gsm.println();
gsm.println();
gsm.print("Status: DEPARTED");
gsm.println();
gsm.print("Number of People:");
gsm.println();
gsm.print("Maximum Capacity:");
gsm.println();
gsm.print("Total Weight of Load: ");
gsm.println();
gsm.print("Maximum Capacity Level:");
gsm.print(" %");
gsm.println();
gsm.print("\r");
delay(200);
gsm.print(char(26));
delay(100);
gsm.println();
Serial.println("Sent Message");

}

void setup() {
 Serial.begin(9600);
 gsm.begin(9600);
 SendMessage1();
 SendMessage();

}


void loop() {
 float rawPressure = analogRead(pressureInput); 
  pressureValue = ((rawPressure - pressureZero) * pressuretransducermaxPSI) / (pressureMax - pressureZero); 

  // Convert PSI to initial depth estimate:
  float newDepthCm = pressureValue * psiToCmWater;

  // Low-pass filter:
  depthCm = alpha * depthCm + (1 - alpha) * newDepthCm;

  Serial.print("Depth: ");
  Serial.print(depthCm, 1); 
  Serial.println(" cm"); 
  delay(sensorreadDelay); 
}