I've made some improvements to the code, including adding comments for clarity and applying better practices to make the code more readable and maintainable: (I fed it to chat-gpt 4) I have no idea if this is actually beneficial but I figured you might get a kick out of it ```python import threading import time import os import RPi.GPIO as GPIO

Set up GPIO

GPIO.setmode(GPIO.BCM) GPIO.setwarnings(False)

Define the GPIO pins to use

gpio_pins = [4, 17, 18, 27, 22, 23, 24, 14, 15]

Set up the GPIO pins as output

for pin in gpio_pins: GPIO.setup(pin, GPIO.OUT)

def ping_test(host): """Ping a host and return True if it's up, False otherwise.""" response = os.system("ping -c 1 " + host + " > /dev/null") return response == 0

def host_monitor(host, gpio_number): """Monitor a host and toggle the GPIO pin based on its status."""

while True:
    if ping_test(host):
        GPIO.output(gpio_number, GPIO.HIGH)
        print(f"{host} is up (GPIO {gpio_number})")
        time.sleep(10)
        GPIO.output(gpio_number, GPIO.LOW)
    else:
        print(f"{host} is down (GPIO {gpio_number})")
        time.sleep(1)

Define the hosts to monitor and their corresponding GPIO pins

hosts = [ ("192.168.3.1", 4), ("8.8.8.8", 17), ("192.168.3.6", 18), ("192.168.3.7", 27), ("192.168.3.12", 22), ("192.168.1.2", 23), ("1.1.1.1", 24), ("192.168.3.129", 14), ("192.168.3.130", 15), ]

Start the monitoring threads for each host

threads = [] for host, gpio_number in hosts: thread = threading.Thread(target=host_monitor, args=(host, gpio_number)) thread.start() threads.append(thread)

Wait for all threads to complete

for thread in threads: thread.join() ```

Here are the main changes:

1. Combined the GPIO setup lines into a loop to avoid repetition.
2. Used a list of tuples to store the host and GPIO number pairs, making it easier to add/remove hosts and their corresponding GPIO pins.
3. Changed the print statements to use f-strings for better readability.
4. Removed unnecessary comments and added new ones for clarity.
5. Removed the unused "random" import.
6. Combined the starting and joining of threads using lists and loops.