from machine import Pin, I2C, ADC, PWM
from time import sleep
from dht import DHT22
from servo import Servo
from lcd_api import LcdApi
from i2c_lcd import I2cLcd
import time

# Inisialisasi perangkat
# Potensiometer sebagai simulasi sensor pH dan DO
potensio_ph = ADC(26)
potensio_do = ADC(27)

# Pin untuk ultrasonic sensor
trigger = Pin(2, Pin.OUT)
echo = Pin(3, Pin.IN)

# Pin untuk LED dan buzzer
led = Pin(4, Pin.OUT)
buzzer = Pin(5, Pin.OUT)

# LED array
led_pins = [Pin(i, Pin.OUT) for i in range(7, 17)]

# Servo motor
servo = Servo(Pin(6))

# Inisialisasi DHT22 sensor
sensor_dht = DHT22(Pin(15))

# Inisialisasi LCD
I2C_ADDR = 0x27
I2C_NUM_ROWS = 4
I2C_NUM_COLS = 20

i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=400000)
lcd = I2cLcd(i2c, I2C_ADDR, I2C_NUM_ROWS, I2C_NUM_COLS)

# Fungsi membaca jarak dari ultrasonic sensor
def get_distance():
    trigger.low()
    sleep(0.000002)
    trigger.high()
    sleep(0.00001)
    trigger.low()

    while echo.value() == 0:
        pass
    start = time.ticks_us()
    while echo.value() == 1:
        pass
    end = time.ticks_us()

    duration = time.ticks_diff(end, start)
    distance = (duration * 0.0343) / 2
    return distance

# Fungsi utama
while True:
    # Membaca nilai potensiometer
    ph_value = potensio_ph.read_u16()
    do_value = potensio_do.read_u16()

    # Konversi nilai sensor
    ph_display = (ph_value / 65535.0) * 10
    do_display = (do_value / 65535.0) * 10

    # Logika sensor pH dan DO
    if ph_display < 4:
        servo.write(180)
        buzzer.value(1)
        led.value(0)
    elif ph_display > 7:
        servo.write(0)
        buzzer.value(1)
        led.value(1)
    elif do_display < 3 or do_display > 5:
        servo.write(0)
        buzzer.value(1)
        led.value(0)
    else:
        servo.write(0)
        led.value(0)
        buzzer.value(0)

    # Membaca suhu dan kelembapan dari DHT22
    sensor_dht.measure()
    temperature = sensor_dht.temperature()

    # Membaca jarak ultrasonic
    distance = get_distance()
    fertilizer_status = "HABIS" if distance > 10 else "TERSEDIA"

    # Menampilkan data di LCD
    lcd.clear()
    lcd.putstr("PH Air : {:.2f}\n".format(ph_display))
    lcd.putstr("Oxygen : {:.2f} mg\n".format(do_display))
    lcd.putstr("Suhu   : {:.2f} C\n".format(temperature))
    lcd.putstr("Pupuk  : {}".format(fertilizer_status))

    sleep(1)