from machine import Pin, UART
import time

gps_uart = UART(1, baudrate=9600, tx=Pin(4), rx=Pin(5))

def read_gps():
    while True:
        if gps_uart.any():
            gps_data = gps_uart.readline()
            print(gps_data)
        time.sleep(0.1)

read_gps()