from machine import Pin, ADC, PWM
from time import sleep
import dht

# ----- Sensors & Actuators -----
ldr = ADC(26)                # LDR
led = Pin(15, Pin.OUT)       # LED
pir = Pin(16, Pin.IN)        # PIR Motion sensor
servo = PWM(Pin(13))         # Servo
sensor = dht.DHT11(Pin(14))  # DHT11

# ----- Servo Setup -----
servo.freq(50)

def set_servo_angle(angle):
    duty = int((angle / 18) + 2)   # Convert angle to duty cycle
    servo.duty_u16(int(duty * 65536 / 100))

# ----- Initialization -----
print("Smart Home Ready!")

# ----- Main Loop -----
while True:
    # --- Read LDR ---
    light_value = ldr.read_u16()
    light_level = light_value / 65535 * 100  # Convert to percentage

    # --- Read DHT11 ---
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()
    except:
        temp, hum = 0, 0

    # --- Read PIR ---
    motion = pir.value()

    # --- LED Control ---
    if light_value < 30000 or motion == 1:
        led.value(1)
    else:
        led.value(0)

    # --- Servo Control ---
    if motion == 1:
        set_servo_angle(90)  # Open
    else:
        set_servo_angle(0)   # Close

    # --- Output to Serial Monitor ---
    print("Light: {:.0f}% | Temp: {}C | Humidity: {}% | Motion: {}".format(
        light_level, temp, hum, motion
    ))

    sleep(1)