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

#define RLED 23
#define OLED 22
#define YLED 21
#define LGLED 19
#define DGLED 18
#define LBLED 5
#define DBLED 4
#define LPLED 2
#define DPLED 13
#define POTPIN 12

void setup() {
  pinMode(RLED, OUTPUT);
  pinMode(OLED, OUTPUT);
  pinMode(YLED, OUTPUT);
  pinMode(LGLED, OUTPUT);
  pinMode(DGLED, OUTPUT);
  pinMode(LBLED, OUTPUT);
  pinMode(DBLED, OUTPUT);
  pinMode(LPLED, OUTPUT);
  pinMode(DPLED, OUTPUT);

  pinMode(POTPIN, INPUT);

  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  float pHValue = map(analogRead(POTPIN), 0, 4095, 0.0, 14.0); // Map analog reading to pH range 0-14

  Serial.print("pH Value: ");
  Serial.println(pHValue, 2); // Print pH value with 2 decimal places

  digitalWrite(RLED, pHValue == 0);
  digitalWrite(OLED, pHValue >= 1.0 && pHValue <= 2.0);
  digitalWrite(YLED, pHValue >= 3.0 && pHValue <= 4.0);
  digitalWrite(LGLED, pHValue >= 5.0 && pHValue <= 6.0);
  digitalWrite(DGLED, pHValue == 7.0);
  digitalWrite(LBLED, pHValue >= 8.0 && pHValue <= 9.0);
  digitalWrite(DBLED, pHValue >= 10.0 && pHValue <= 11.0);
  digitalWrite(LPLED, pHValue >= 12.0 && pHValue <= 13.0);
  digitalWrite(DPLED, pHValue == 14.0);

  delay(1000);
}