How to use import serial in Ros Foxy

edit

import RPi.GPIO as GPIO import time import serial

GPIO.setmode(GPIO.BCM)

redLED = 13 GPIO.setup(redLED, GPIO.OUT) GPIO.output(redLED,False)

ser = serial.Serial('/dev/ttyUSB0',115200,timeout=None)

while True: GPIO.output(redLED, False) line1 = ser.readline() line2 = ser.readline() line3 = ser.readline() line4 = ser.readline() ch1 = line1.strip().decode('utf-8') ch2 = line2.strip().decode('utf-8') ch3 = line3.strip().decode('utf-8') ch4 = line4.strip().decode('utf-8') print(ch1,ch2,ch3,ch4) GPIO.output(redLED, True) time.sleep(1) ser.close()

i wanted to publish the ser.readline data.

Then this demo https://micro.ros.org/blog/2019/06/03... or this tutorial https://ubuntu.com/blog/getting-start... suit you very well :) With Raspberry Pi and some LEDs

Thank you for the suggestions but is it possible is I don't want to use micro ros? and for the raspberry pi I'm using raspberry pi 4.

Unfortunately, I only know (somewhat) the solution for ROS1, rosserial, I am not sure if there is similar package for ROS2. I couldn't find any, so I mentioned micro-ROS.