H02_client.py

import socket
import time
from datetime import datetime
import sys


def create_packet():
    # Get current time and date
    now = datetime.now()

    # Format time as HHMMSS
    time_str = now.strftime("%H%M%S")

    # Format date as DDMMYY
    date_str = now.strftime("%d%m%y")

    # Create packet with updated time and date
    # Original: *HQ,6170881331,V1,094131,V,2356.9027,N,09022.8075,E,000.29,000,040218,FFFF9FFF,470,02,00217,41677#
    packet = (
        f"*HQ,6170881331,V1,{time_str},V,2356.9027,N,09022.8075,E,"
        f"000.29,000,{date_str},FFFF9FFF,470,02,00217,41677#"
    )
    return packet.encode()


def send_packet(sock, server_address, packet):
    try:
        # Send packet
        sock.sendto(packet, server_address)
        print(f"Packet sent at {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
        print(f"Packet content: {packet.decode()}")
    except socket.error as e:
        print(f"Error sending packet: {e}")
        return False
    return True


def main():
    # Server configuration
    SERVER_IP = "5.223.51.136"
    SERVER_PORT = 5013
    server_address = (SERVER_IP, SERVER_PORT)

    # Create UDP socket
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        print(f"Connected to {SERVER_IP}:{SERVER_PORT}")
    except socket.error as e:
        print(f"Failed to create socket: {e}")
        sys.exit(1)

    print("Starting packet transmission (Press Ctrl+C to stop)...")

    try:
        while True:
            # Create and send packet
            packet = create_packet()
            if not send_packet(sock, server_address, packet):
                break

            # Wait for 60 seconds
            time.sleep(60)

    except KeyboardInterrupt:
        print("\nPacket transmission stopped by user")
    except Exception as e:
        print(f"An error occurred: {e}")
    finally:
        sock.close()
        print("Socket closed")


if __name__ == "__main__":
    main()