#Smart Room with monitoring system
import machine
import ssd1306
import dht
import time

# Pin configuration
dht_pin = machine.Pin(2)  # DHT22 Connected To Pin 2
led_pin = machine.Pin(4, machine.Pin.OUT)  # LED connected to pin 4
led_pir_pin = machine.Pin(19, machine.Pin.OUT)  # LED for PIR motion sensor connected to pin 19 (change as needed)
servo_pin_1 = machine.Pin(5)  # Servo motor 1 connected to pin 5
servo_pin_2 = machine.Pin(18)  # Servo motor 2 connected to pin 18 (change as needed)
pir_pin = machine.Pin(14, machine.Pin.IN)  # PIR motion sensor connected to pin 14

# Create PWM objects for LED and Servo
led_pwm = machine.PWM(led_pin)
led_pir_pwm = machine.PWM(led_pir_pin)
servo_pwm_1 = machine.PWM(servo_pin_1, freq=50)  # Specify frequency for servo motor 1 (50Hz is common)
servo_pwm_2 = machine.PWM(servo_pin_2, freq=50)  # Specify frequency for servo motor 2 (50Hz is common)

# OLED SSD1306 Configurations
i2c_1 = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21))
oled_1 = ssd1306.SSD1306_I2C(128, 64, i2c_1)  # OLED for main display
i2c_2 = machine.I2C(scl=machine.Pin(25), sda=machine.Pin(26))  # Change the pin numbers as needed
oled_2 = ssd1306.SSD1306_I2C(128, 64, i2c_2)  # OLED for secondary display

# Create a DHT object
dht_sensor = dht.DHT22(dht_pin)

# Function to turn the servo to a specific angle
def set_servo_angle(servo_pwm, angle):
    duty = int(((angle / 180) * 75) + 40)  # Convert angle to duty cycle (PWM range: 40-115)
    servo_pwm.duty(duty)

# Function to return the servo to the normal position (0 degrees)
def return_servo_to_normal(servo_pwm):
    set_servo_angle(servo_pwm, 0)

# Function to hide the secondary OLED display after a delay
def hide_secondary_oled():
    oled_2.fill(0)
    oled_2.show()

while True:
    try:
        dht_sensor.measure()
        temperature = dht_sensor.temperature()
        humidity = dht_sensor.humidity()

        oled_1.fill(0)
        oled_1.text("Temperature:", 0, 0)
        oled_1.text(str(temperature) + " C", 0, 16)
        oled_1.text("Humidity:", 0, 32)
        oled_1.text(str(humidity) + " %", 0, 48)
        oled_1.show()

        # Control LED and Servo 1 based on temperature
        if temperature >= 22:
            led_pwm.duty(512)  # Adjust duty cycle for LED (PWM range: 0-1023)
            set_servo_angle(servo_pwm_1, 90)  # Turn servo 1 to 90 degrees
        elif temperature <= 18:
            led_pwm.duty(0)  # Turn off the LED
            return_servo_to_normal(servo_pwm_1)  # Return servo 1 to normal position

        # Control Servo 2, LED for PIR sensor, and OLED 2 based on motion detection
        if pir_pin.value() == 1:  # Motion detected
            set_servo_angle(servo_pwm_2, 90)  # Open servo 2 to 90 degrees
            led_pir_pwm.duty(512)  # Turn on LED for PIR sensor
            oled_2.fill(0)
            oled_2.text("Welcome", 0, 16)
            oled_2.show()
        else:
            return_servo_to_normal(servo_pwm_2)  # Close servo 2 to normal position
            led_pir_pwm.duty(0)  # Turn off LED for PIR sensor
            oled_2.text("Goodbye", 0, 16)
            oled_2.show()
            time.sleep(10)  # Wait for 10 seconds
            hide_secondary_oled()  # Hide the secondary OLED display

    except Exception as e:
        print("Error:", e)

    time.sleep(5)