#include <OneWire.h>
#include <DallasTemperature.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define ONE_WIRE_BUS 2         // Data wire connected to pin 2 for Dallas temperature sensor
#define OLED_RESET    4        // Reset pin of OLED display
#define MOTOR_PIN 9            // Pin connected to the BLDC motor driver

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

#define SCREEN_WIDTH 128       // OLED display width, in pixels
#define SCREEN_HEIGHT 64       // OLED display height, in pixels

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Serial.begin(9600);

    // Initialize OLED display
      display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
        display.clearDisplay();
          display.setTextColor(SSD1306_WHITE);
            display.setTextSize(1);

              // Start DallasTemperature sensor
                sensors.begin();

                  // Set motor pin as output
                    pinMode(MOTOR_PIN, OUTPUT);
                    }

                    void loop() {
                      // Request temperature readings
                        sensors.requestTemperatures();

                          // Read temperature from sensor
                            float temperatureC = sensors.getTempCByIndex(0);

                              // Control motor speed based on temperature
                                int motorSpeed = map(temperatureC, 20, 30, 0, 255); // Map temperature to motor speed range (20°C to 30°C)

                                  // Limit motor speed to the range 0-255
                                    motorSpeed = constrain(motorSpeed, 0, 255);

                                      // Set motor speed
                                        analogWrite(MOTOR_PIN, motorSpeed);

                                          // Display temperature and motor speed on OLED
                                            display.clearDisplay();
                                              display.setCursor(0, 0);
                                                display.print("Temperature:");
                                                  display.setCursor(0, 10);
                                                    display.print(temperatureC, 1); // Display temperature with one decimal place
                                                      display.print(" C");
                                                        display.setCursor(0, 20);
                                                          display.print("Motor Speed:");
                                                            display.print(motorSpeed);
                                                              display.display();

                                                                // Print temperature and motor speed to serial monitor
                                                                  Serial.print("Temperature: ");
                                                                    Serial.print(temperatureC);
                                                                      Serial.println(" C");
                                                                        Serial.print("Motor Speed: ");
                                                                          Serial.println(motorSpeed);

                                                                            delay(1000);  // Update temperature reading and motor speed every second
                                                                            }