ploop

        t_stamp = time.mktime(gps.timestamp_utc)
        PLOG_FILE = f"{t_stamp}pressure.txt"
        start = time.monotonic_ns()
        deadline = start / 1e9 + 60
        with open((plog_path+PLOG_FILE), LOG_MODE) as pressfile:
            print(t_stamp, gps.latitude, gps.longitude, gps.altitude_m, file=pressfile)
            curr_time = start
            while curr_time < deadline:
                curr_time = (time.monotonic_ns() - start) / 1e9
                print(curr_time, lps.pressure, file=pressfile, flush=True)