import machine
import time
import dht
from machine import Pin

decho = Pin(18, Pin.IN)
dtrig = Pin(19, Pin.OUT)
becho = Pin(25, Pin.IN)
btrig = Pin(26, Pin.OUT)

# Define pin numbers
LED_PIN = 22
DHT_PIN = 15
CURTAINS_SERVO_PIN = 12
WATER_SERVO_PIN = 32

# Initialize components
led = Pin(LED_PIN, Pin.OUT)
dht_sensor = dht.DHT11(Pin(DHT_PIN))
curtains_servo = machine.PWM(machine.Pin(CURTAINS_SERVO_PIN), freq=50)
water_servo = machine.PWM(machine.Pin(WATER_SERVO_PIN), freq=50)
led.off()
# Function to control LEDs
def control_led(state):
    led.value(state)

# Function to open/close curtains
def control_curtains(angle):
    curtains_servo.duty(angle)

# Function to control water pipe stopper
def control_water(angle):
    water_servo.duty(angle)

# Function to read temperature and humidity
def read_dht():
    dht_sensor.measure()
    return dht_sensor.temperature(), dht_sensor.humidity()

# Function to measure distance using ultrasonic sensor
def dmeasure_distance():
    dtrig.value(0)
    time.sleep_us(5)
    dtrig.value(1)
    time.sleep_us(10)
    dtrig.value(0)
    
    x = machine.time_pulse_us(decho, 1)
    distance = (0.0343 * x) / 2
    return distance

def bmeasure_distance():
    btrig.value(0)
    time.sleep_us(5)
    btrig.value(1)
    time.sleep_us(10)
    btrig.value(0)
    
    x = machine.time_pulse_us(becho, 1)
    distance = (0.0343 * x) / 2
    return distance

try:
    while True:
        temperature, humidity = read_dht()
        door_distance = dmeasure_distance()
        bin_distance = bmeasure_distance()
        if door_distance < 10 or humidity>75:  
            control_led(1)  # Turn on LED
        else:
            control_led(0)  # Turn off LED

        if bin_distance < 20: 
            control_water(90)  
        else:
            control_water(0)  
        
        
        if temperature > 25:  
            control_curtains(0)  
            control_curtains(90)
        time.sleep(1)  
except KeyboardInterrupt:
    pass