MicroPython - STM32 W5500 이더넷 모듈 소켓 통신

main.py

from pyb import SPI, Timer
from network import WIZNET5K
from usocket import socket

nic = WIZNET5K(SPI(2), 'Y5', 'Y4')
nic.active(True)
nic.ifconfig('dhcp')

if nic.isconnected():
    config = nic.ifconfig()
    print(config)

    print('IP : ' + config[0])
    print('SUBNET : ' + config[1])
    print('GATEWAY : ' + config[2])
    print('DNS : ' + config[3])

    s = socket()
    addr = ('192.168.86.58', 65432)
    s.connect(addr)
    
def timeout(_):
    global s
    s.send('Hello DeviceMart!')
    
timer = Timer(1, freq=1)
timer.callback(timeout)

while True:
    text = s.recv(128)
    if text == '':
        pass
    else:
        print('Server : ' + text.decode('utf-8'))

server.py

import socket

HOST = '192.168.86.58'
PORT = 65432

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    s.bind((HOST, PORT))
    s.listen()
    conn, addr = s.accept()
    with conn:
        print(f"Connected by {addr}")
        while True:
            data = conn.recv(1024)
            if not data:
                break
            conn.sendall(data)