from machine import Pin, I2C, UART
import time
from ssd1306 import SSD1306_I2C
from tinygps import TinyGPS

latitud = 0.0
longitud = 0.0
lat_str = ""
lng_str = ""

ssid = ".."
passkey = "juan1010"
auth_token = ""

gps = TinyGPS()

i2c = I2C(-1, Pin(22), Pin(21))
oled = SSD1306_I2C(128, 64, i2c)

uart = UART(1, baudrate=9600, tx=17, rx=16)

def connect_wifi():
    print("Conectándose a", ssid)
    while not wlan.isconnected():
        print(".")
        time.sleep(0.5)
    print("WiFi conectado")

def display_gps_data():
    global latitud, longitud, lat_str, lng_str
    while uart.any():
        sentence = uart.readline()
        if sentence.startswith(b"$GPGGA"):
            gps_data = sentence.decode("utf-8").split(",")
            if gps_data[7] == '1':
                latitud = float(gps_data[2]) / 100
                longitud = float(gps_data[4]) / 100
                lat_str = "{:.6f}".format(latitud)
                lng_str = "{:.6f}".format(longitud)
                print("Latitud =", lat_str)
                print("Longitud =", lng_str)
                oled.fill(0)
                oled.text("Latitud: {}".format(lat_str), 0, 0)
                oled.text("Longitud: {}".format(lng_str), 0, 16)
                oled.show()
                blynk.virtual_write(0, 1, latitud, longitud, "Ubicación")

connect_wifi()

while True:
    display_gps_data()
    time.sleep(1)
    blynk.run()