// #include <Wire.h>
// #include <Adafruit_GFX.h>
// #include <Adafruit_SSD1306.h>

// #define SCREEN_WIDTH 128
// #define SCREEN_HEIGHT 64
// #define OLED_RESET    -1
// Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// // Define pins for A4988 stepper motor driver
// #define DIR_PIN 25
// #define STEP_PIN 26

// // Define LED pin
// #define LED_PIN 27

// // Define temperature sensor pin
// #define TEMP_SENSOR_PIN 34
// #define BETA 3950  // Beta value of the NTC thermistor

// float temperatureC;

// void setup() {
//   // Initialize serial communication
//   Serial.begin(115200);

//   // Set up pin modes
//   pinMode(DIR_PIN, OUTPUT);
//   pinMode(STEP_PIN, OUTPUT);
//   pinMode(LED_PIN, OUTPUT);

//   // Initialize the LED and motor as off
//   digitalWrite(LED_PIN, LOW);
//   digitalWrite(DIR_PIN, LOW);
//   digitalWrite(STEP_PIN, LOW);

//   // Initialize the OLED display
//   if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
//     Serial.println(F("SSD1306 allocation failed"));
//     for (;;);
//   }
//   display.display();
//   delay(2000);  // Pause for 2 seconds
//   display.clearDisplay();
// }

// void loop() {
//   // Read the NTC thermistor value and calculate temperature
//   int analogValue = analogRead(TEMP_SENSOR_PIN);
//   float resistance = 10000.0 * (4095.0 / analogValue - 1.0);
//   temperatureC = 1.0 / (log(resistance / 10000.0) / BETA + 1.0 / 298.15) - 273.15;

//   Serial.print("Temperature: ");
//   Serial.print(temperatureC);
//   Serial.println(" °C");

//   display.clearDisplay();
//   display.setTextSize(1);
//   display.setTextColor(SSD1306_WHITE);
//   display.setCursor(0, 0);

//   if (temperatureC > 30) {
//     // Temperature threshold exceeded, trigger motor and LED
//     Serial.println("Rain Detected! wiper starts working ");
//     display.println("Rain Detected!");
//     digitalWrite(LED_PIN, HIGH);  // Turn on LED

//     // Step the motor (open umbrella)
//     digitalWrite(DIR_PIN, HIGH);  // Set direction
//     for (int i = 0; i < 200; i++) {  // Step for 200 steps
//       digitalWrite(STEP_PIN, HIGH);
//       delayMicroseconds(800);
//       digitalWrite(STEP_PIN, LOW);
//       delayMicroseconds(800);
//     }
//   } else {
//     // No rain detected, stop motor and LED
//     Serial.println("No Rain.wiper does not work ");
//     display.println("No Rain.");

//     digitalWrite(LED_PIN, LOW);  // Turn off LED

//     // Step the motor in the reverse direction (close umbrella)
//     digitalWrite(DIR_PIN, LOW);  // Set direction
//     for (int i = 0; i < 200; i++) {  // Step for 200 steps
//       digitalWrite(STEP_PIN, HIGH);
//       delayMicroseconds(800);
//       digitalWrite(STEP_PIN, LOW);
//       delayMicroseconds(800);
//     }
//   }

//   display.display();  // Show the updated content on the OLED
//   delay(2000);  // Wait 2 seconds before the next reading
// }
#include <Wire.h>

// Define pins for A4988 stepper motor driver
#define DIR_PIN 25
#define STEP_PIN 26

// Define LED pin
#define LED_PIN 27

// Define temperature sensor pin
#define TEMP_SENSOR_PIN 34
#define BETA 3950  // Beta value of the NTC thermistor

float temperatureC;

void setup() {
  // Initialize serial communication
  Serial.begin(115200);

  // Set up pin modes
  pinMode(DIR_PIN, OUTPUT);
  pinMode(STEP_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);

  // Initialize the LED and motor as off
  digitalWrite(LED_PIN, LOW);
  digitalWrite(DIR_PIN, LOW);
  digitalWrite(STEP_PIN, LOW);
}

void loop() {
  // Read the NTC thermistor value and calculate temperature
  int analogValue = analogRead(TEMP_SENSOR_PIN);
  float resistance = 10000.0 * (4095.0 / analogValue - 1.0);
  temperatureC = 1.0 / (log(resistance / 10000.0) / BETA + 1.0 / 298.15) - 273.15;

  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" °C");

  if (temperatureC > 30) {
    // Temperature threshold exceeded, trigger motor and LED
    Serial.println("Rain Detected! Opening Umbrella...");
    digitalWrite(LED_PIN, HIGH);  // Turn on LED

    // Step the motor (open umbrella)
    digitalWrite(DIR_PIN, HIGH);  // Set direction
    for (int i = 0; i < 200; i++) {  // Step for 200 steps
      digitalWrite(STEP_PIN, HIGH);
      delayMicroseconds(800);
      digitalWrite(STEP_PIN, LOW);
      delayMicroseconds(800);
    }
  } else {
    // No rain detected, stop motor and LED
    Serial.println("No Rain. Closing Umbrella...");
    digitalWrite(LED_PIN, LOW);  // Turn off LED

    // Step the motor in the reverse direction (close umbrella)
    digitalWrite(DIR_PIN, LOW);  // Set direction
    for (int i = 0; i < 200; i++) {  // Step for 200 steps
      digitalWrite(STEP_PIN, HIGH);
      delayMicroseconds(800);
      digitalWrite(STEP_PIN, LOW);
      delayMicroseconds(800);
    }
  }

  delay(2000);  // Wait 2 seconds before the next reading
}