udp broadcast

udp_broadcast_recv.py

import socket

sock = socket.socket(type=socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('192.168.0.255', 12345))

while 1:
    data, addr = sock.recvfrom(100)
    print(data, addr)

udp_broadcast_send.py

import socket
import time

sock = socket.socket(type=socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

dst = ('192.168.0.255', 12345)

cnt = 0
while 1:
    msg = '{:04d}'.format(cnt)
    sock.sendto(msg.encode(), dst)
    cnt += 1

    time.sleep(1.0)