from machine import Pin, ADC, I2C
import time
import network
import BlynkLib
from BlynkTimer import BlynkTimer
from pico_i2c_lcd import I2cLcd

# Konfigurasi WiFi
WIFI_SSID = 'Wokwi-GUEST'
WIFI_PASS = ''

# Token Blynk (sesuaikan dengan token proyek Anda)
BLYNK_AUTH = 'N1Ewf8ikUH_GNZd0YCbTFHfa0m18MXhu'

# Inisialisasi WiFi
wifi = network.WLAN(network.STA_IF)
if not wifi.isconnected():
    print("Connecting to WiFi...")
    wifi.active(True)
    wifi.connect(WIFI_SSID, WIFI_PASS)
    while not wifi.isconnected():
        print(".", end="")
        time.sleep(1)
print('\nConnected to WiFi, IP:', wifi.ifconfig()[0])

# Inisialisasi Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH, insecure=True)
timer = BlynkTimer()

# Inisialisasi sensor dan aktuator
ph_sensor = ADC(26)  # Sensor pH
tds_sensor = ADC(27)  # Sensor TDS

relay_ph_up = Pin(15, Pin.OUT)
relay_ph_down = Pin(16, Pin.OUT)
relay_nutrisi = Pin(17, Pin.OUT)

i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=400000)
lcd = I2cLcd(i2c, 0x27, 2, 16)

# Rentang pH dan TDS
PH_MIN, PH_MAX = 6.0, 7.0
TDS_MIN, TDS_MAX = 1260, 1610

# Fungsi pembacaan sensor
def read_ph():
    return round((ph_sensor.read_u16() / 65535) * 14, 2)

def read_tds():
    return int((tds_sensor.read_u16() / 65535) * 2000)

# Fungsi kontrol dan indikator LED
def control_and_update():
    ph = read_ph()
    tds = read_tds()

    # Kontrol pH
    if ph < PH_MIN:
        relay_ph_up.value(1)
        time.sleep(2)
        relay_ph_up.value(0)
        relay_ph_down.value(0)
        blynk.virtual_write(2, 1)  # LED pH Up ON
        blynk.virtual_write(3, 0)  # LED pH Down OFF
    elif ph > PH_MAX:
        relay_ph_up.value(0)
        relay_ph_down.value(1)
        time.sleep(2)
        relay_ph_down.value(0)
        blynk.virtual_write(2, 0)  # LED pH Up OFF
        blynk.virtual_write(3, 1)  # LED pH Down ON
    else:
        relay_ph_up.value(0)
        relay_ph_down.value(0)
        blynk.virtual_write(2, 0)  # LED pH Up OFF
        blynk.virtual_write(3, 0)  # LED pH Down OFF

    # Kontrol TDS
    if tds < TDS_MIN:
        relay_nutrisi.value(1)
        time.sleep(2)
        relay_nutrisi.value(0)
        blynk.virtual_write(4, 1)  # LED Nutrisi ON
    else:
        relay_nutrisi.value(0)
        blynk.virtual_write(4, 0)  # LED Nutrisi OFF

    # Tampilkan di LCD
    lcd.clear()
    lcd.putstr(f"pH: {ph}\nTDS: {tds} ppm")
    print(f"pH: {ph}, TDS: {tds} ppm")

# Fungsi untuk mengirim data sensor ke Blynk
def upload_data():
    ph = read_ph()
    tds = read_tds()
    blynk.virtual_write(0, ph)  # V0 untuk pH
    blynk.virtual_write(1, tds)  # V1 untuk TDS
    print(f"Uploaded: pH={ph}, TDS={tds}")

# Timer untuk mengontrol dan mengunggah data
timer.set_interval(3, control_and_update)
timer.set_interval(5, upload_data)

@blynk.on("connected")
def blynk_connected(ping):
    print(f"Blynk connected (ping: {ping} ms)")

@blynk.on("disconnected")
def blynk_disconnected():
    print("Blynk disconnected")

# Loop utama
while True:
    blynk.run()
    timer.run()
    time.sleep(1)