import time
import board
import busio
import adafruit_gps
uart = busio.UART(board.TX, board.RX, 
    baudrate=9600, timeout=100)
gps = adafruit_gps.GPS(uart)
cf = b'PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0'
gps.send_command(cf)
gps.send_command(b'PMTK220,1000')
anterior = time.monotonic()
while True:
    gps.update()
    actual = time.monotonic()
    if actual - anterior == 1.0:
        anterior = actual
        if not gps.has_fix:
            print('Esperando...')
        else:
            print('')
            print('Calidad de senal ', 
                gps.fix_quality)
            if gps.satellites is not None:
                print('Sats ', 
                    gps.satellites)