is there a ros serial node to log data?

edit

Is there a ROS package that takes serial port data and publish it on some topics? It would be very usefull, for logging serial data from sensor like GPS, ecosounder... I can't find any...

Thank

EDIT1: Based on this code I write this node and now I'm testing it:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""Defines the main method for the nmea_serial_driver executable."""

import serial
import sys
import rospy
from ect400.msg import FloatStamped

class ECT400Node(object):
    """

    ROS parameters:
        ~port (str): Path of the serial device to open.
        ~baud (int): Baud rate to configure the serial device.
    """
    def __init__(self):
        serial_port = rospy.get_param('~port', '/dev/ttyUSB0')
        serial_baud = rospy.get_param('~baud', 115200)
        # Creo que publisher que envía los datos al tópico pedido
        self.ect_data = rospy.Publisher(
            "depth_data",
            FloatStamped,
            queue_size=10)

        try:
            GPS = serial.Serial(port=serial_port, baudrate=serial_baud, timeout=2)

            try:
                while not rospy.is_shutdown():
                    data = GPS.readline()#.strip()
#                    rospy.loginfo("[ECT400] Data from sensor: %s", data)
                    data = data.split(",")
                    if len(data) == 7:
                        depth = float(data[3])
                        # print depth
                        # Armo el mensaje a publicar
                        message = FloatStamped()
                        message.header.stamp = rospy.Time.now()
                        message.data = depth
                        self.ect_data.publish(message)
    #               try:
    #                   driver.add_sentence(data, frame_id)
    #               except ValueError as e:
    #                   rospy.logwarn(
    #                       "Value error, likely due to missing fields in the NMEA message. "
    #                       "Error was: %s. Please report this issue at "
    #                       "github.com/ros-drivers/nmea_navsat_driver, including a bag file with the NMEA "
    #                       "sentences that caused it." %
    #                       e)

            except (rospy.ROSInterruptException, serial.serialutil.SerialException):
                GPS.close()  # Close GPS serial port
        except serial.SerialException as ex:
            rospy.logfatal(
                "Could not open serial port: I/O error({0}): {1}".format(ex.errno, ex.strerror))

    def shutdown(self):
        """Unregisters publishers and subscribers and shutdowns timers"""
        rospy.loginfo("[ECT400] Sayonara Robot Adapter. Nos vemo' en Disney.")

def main():
    """Entrypoint del nodo"""
    rospy.init_node('ect400_driver', anonymous=True, log_level=rospy.INFO)
    node = ECT400Node()

    try:
        rospy.spin()
    except KeyboardInterrupt:
        rospy.loginfo("[ECT400] Received Keyboard Interrupt (^C). Shutting down.")
    node.shutdown()

if __name__ == '__main__':
    main()

It seems to work ok, but I would like to take some posible erros into account.