"""Simple program to demo how to use meshtastic library.

To run: python examples/pub_sub_example.py

"""

import sys

from pubsub import pub

import meshtastic

import meshtastic.tcp_interface

# simple arg check

if len(sys.argv) < 2:

print(f"usage: {sys.argv[0]} host")

sys.exit(1)

def onConnection(interface, topic=pub.AUTO_TOPIC): # pylint: disable=unused-argument

"""This is called when we (re)connect to the radio."""

print(interface.myInfo)

interface.close()

pub.subscribe(onConnection, "meshtastic.connection.established")

try:

iface = meshtastic.tcp_interface.TCPInterface(sys.argv[1])

except:

print(f"Error: Could not connect to {sys.argv[1]}")

sys.exit(1)