**System Initialization** rev_25

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    - Project: **System Initialization**
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2024-10-20 23:16:10

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* merge code. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <TinyGPSPlus.h>
#include "ACS712.h"
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <SPIFFS.h>
#include <ArduinoJson.h>
#include <EEPROM.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include "X9C10X.h"

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

// Access Point credentials
char ssid[] = "pleasedontcode.com";        // your network SSID (name)
char pass[] = "prova1234";        // your network password (use for WPA, or use as key for WEP)

// Create an instance of the web server
AsyncWebServer server(80);

// Instantiate library objects
TinyGPSPlus gps;
ACS712 ACS(current_pin, 3.3, 4095, 40); // Current sensor
X9C10X pot(10000);  // Digital potentiometer

// Define constants and global variables...
#define VELOCITA_SOGLIA_HIGH 75.0 //km/h
#define VELOCITA_SOGLIA_LOW 65.0 //km/h
#define VELOCITA_SOGLIA_0A_HIGH  20.0 //km/h
#define VELOCITA_SOGLIA_0A_LOW  10.0 //km/h

// Pins and global variables...
const int water_level_pin = 18;
const int voltage_pin     = 35;
const int current_pin     = 34;
const int tempSensor1_pin = 33;
const int tempSensor2_pin = 32;
const int ONE_WIRE_BUS_Temp1 = 19; // Temperature sensor 1
const int ONE_WIRE_BUS_Temp2 = 21; // Temperature sensor 2
const int DIGPOT_INC      = 4;    // pin INC - X9C103S
const int DIGPOT_UD       = 5;    // pin UD - X9C103S
const int DIGPOT_CS       = 15;   // pin CS - X9C103S

const float PWM_output_percentage_0A = 0.0; //0%
const float PWM_output_percentage_9A = 20.0; //20% --> 1V/5V
const float PWM_output_percentage_5A = 13.0; //13% --> 0,65V/5V

// Global data
float PWM_output_percentage = 0.0;
float velocita = 0.0;
float voltage_output_value = 0.0;
bool waterLevelEmpty = true;
float voltage = 0.0;
float current = 0.0;
float temperature1 = 0.0;
float temperature2 = 0.0;
unsigned long powerOnTime = 0; //minutes

boolean startRegeneration = false;
unsigned int set_current  = 0;
unsigned int set_timer    = 0;

// Configuration for ACS712
unsigned int ADC_Offset = 1930;

// Setup a OneWire instance for temperature sensors
OneWire oneWire1(ONE_WIRE_BUS_Temp1);
OneWire oneWire2(ONE_WIRE_BUS_Temp2);
DallasTemperature sensor1(&oneWire1);
DallasTemperature sensor2(&oneWire2);

/****** DEFINITION OF ANALOG INPUTS CHARACTERISTIC CURVES *****/
const uint8_t SEGMENT_POINTS_voltage_Temperature = 10;
const float voltage_Temperature_lookup[2][SEGMENT_POINTS_voltage_Temperature] =
{
    {0.0, 1.2, 1.9, 5.0, 10.0, 14.5, 17.0, 20.0, 30.0, 35.0}, // voltage [V]
    {0.0, 5.0, 7.0, 13.0, 22.0, 29.0, 33.0, 37.0, 56.0, 65.0} // percentage [°C]
};

// Initialize SPIFFS for file storage
void initSPIFFS() {
  if (!SPIFFS.begin(true)) {
    Serial.println("An error occurred while mounting SPIFFS");
    return;
  }
  Serial.println("SPIFFS mounted successfully");
}

void setup() {
  // Start Serial for debugging
  Serial.begin(115200);

  delay(1000);
  Serial.println("ciao");

  pot.begin(DIGPOT_INC, DIGPOT_UD, DIGPOT_CS);  // Initialize digital potentiometer

  // Initialize ACS712 sensor
  ACS.setMidPoint(ADC_Offset);

  // Initialize temperature sensors
  sensor1.begin();
  sensor2.begin();

  // Initialize SPIFFS
  initSPIFFS();

  // Set up WiFi Access Point
  WiFi.mode(WIFI_AP); // Set the ESP32 to access point mode
  if (!WiFi.softAP(ssid, pass)) {
    Serial.println("Soft AP creation failed.");
    while(1);
  }

  // Print the IP address of the access point
  IPAddress IP = WiFi.softAPIP();
  Serial.print("Access Point IP Address: ");
  Serial.println(IP);

  // Serve the JPEG image
  server.on("/background.jpg", HTTP_GET, [](AsyncWebServerRequest *request){
    request->send(SPIFFS, "/background.jpg", "image/jpeg");
  });

  // Serve the HTML page
  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
    request->send(SPIFFS, "/index.html", "text/html");
  });

  // Start the server
  server.begin();
}

void loop() {
  // No logic in the loop; the server works asynchronously
  readGPSAndCheckSpeed();
  readCurrent();
  readVoltage();
  readWaterTank();
  readTemp1();
  readTemp2();
  updateMinutesCounter();
  checkRegeneration();
}

// Function implementations...

/* END CODE */