Créer un bouton sans fil sous esp8266 (01/01s) pour démarrer son PC (magic packet)

#main.py Projet à télécharger ici https://monkeytime.be/blog/data/medias/powa.zip Je l'ai créer avec ce type de bouton acheté sur Amazon en lui adaptant un petit boitier pour contenir l'électronique et ce petit bouton power.

try:
  import usocket as socket
except:
  import socket
import network
from time import sleep
import ubinascii
from micropython import const
HEADER = "F" * 12

LED = machine.Pin(0, machine.Pin.OUT)
LED.value(0)

def create_magic_packet(macaddress: str) -> bytes:

    if len(macaddress) == 17:
        sep = macaddress[2]
        macaddress = macaddress.replace(sep, "")
    elif len(macaddress) != 12:
        raise ValueError("Incorrect MAC address format")

    return ubinascii.unhexlify(HEADER + macaddress * 16)


def send_magic_packet(
    *macs: str,
    ip_address: str,
    port: int = 9,
    interface: str = None
) -> None:  

    packets = [create_magic_packet(mac) for mac in macs]
    
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    if interface is not None:
        sock.bind((interface, 0))
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    sock.connect((ip_address, port))
    for packet in packets: 
        sock.send(packet) 
    sock.close()


_hexdig = '0123456789ABCDEFabcdef'
_hextobyte = None
def unquote(string):
    """unquote('abc%20def') -> b'abc def'."""
    global _hextobyte

    # Note: strings are encoded as UTF-8. This is only an issue if it contains
    # unescaped non-ASCII characters, which URIs should not.
    if not string:
        return b''

    if isinstance(string, str):
        string = string.encode('utf-8')

    bits = string.split(b'%')
    if len(bits) == 1:
        return string

    res = [bits[0]]
    append = res.append

    # Delay the initialization of the table to not waste memory
    # if the function is never called
    if _hextobyte is None:
        _hextobyte = {(a + b).encode(): bytes([int(a + b, 16)])
                      for a in _hexdig for b in _hexdig}

    for item in bits[1:]:
        try:
            append(_hextobyte[item[:2]])
            append(item[2:])
        except KeyError:
            append(b'%')
            append(item)

    return b''.join(res)

def start_access_point():
    
    global ap
    
    ssid = 'POWA-AP'
    password = '123454321'

    ap = network.WLAN(network.AP_IF)
    ap.active(True)
    ap.config(essid=ssid, password=password)

    while ap.active() == False:
      pass

    print('AP start successful')
    print(ap.ifconfig())

def stop_access_point():
    if ('ap' in globals()):
        ap.active(False)
    
def stop_socket_loop():
    if ('conn' in globals()):
        conn.close()
    
    
def parse_params(part):
    parameters = {}
    for piece in part.split(" "):
        if "/?" in piece:
            piece = piece.replace("/?", "")
            amp_split = piece.split("&")
            for param_set in amp_split:
                eq_split = param_set.split("=")
                parameters[eq_split[0]] = eq_split[1]
    return parameters

def send_config_page():
    f = open('index.html', 'r')
    while True:
        chunk = f.read(5024)
        if not chunk:
            break
        conn.sendall(str(chunk))
    conn.close()
    f.close()
    
def web_page_success():
    html = """<html><body><h1 style="color:green; position: absolute; top: 50%; left: 45%; width:10%">SUCCESS</h1></body></html>"""
    return html

def do_connect():
    global sta_if
    sta_if = network.WLAN(network.STA_IF)
    if not sta_if.isconnected():
        print('connecting to network...')
        try:
            fssid = open('ssid.dat')
            fpass = open('password.dat')
        except OSError:
            print('Open files error')
            fssid = ""
            fpass = ""
        sta_if = network.WLAN(network.STA_IF)
        sta_if.active(True)             
        sta_if.connect(fssid.readline(), fpass.readline())
        while not sta_if.isconnected():
            pass
    print('network config:', sta_if.ifconfig())
    a = sta_if.config('mac')
    print('MAC {:02x}:{:02x}:{:02x}:{:02x}:{:02x}'.format(a[0],a[1],a[2],a[3],a[4]))

def boot():
    try:
        fmac = open('mac.dat')
        mac = fmac.readline()
        mask = sta_if.ifconfig()[1].split('.')[3]
        if(mask == '255'):
            mask = '0'
        else:
            mask = '255'
        ip = sta_if.ifconfig()[2].split('.')
        ip_broadcast = ip[0] + '.' + ip[1] + '.' + ip[2] + '.' + mask
        print('Broadcast ip is ' + ip_broadcast)
    except OSError:
        print('Open files error')
    send_magic_packet(str(mac), ip_address = str(ip_broadcast))
    sleep(0.5)
    print('Magic packet sent for ' + mac)

def stop_wifi():
    if('sta_if' in globals):
        sta_if.active(False)

def start_socket_loop():
    gc.collect()
    addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    s.setblocking(False)
    s.bind((addr))
    s.listen()
    s.settimeout(None)
    
    while True:
      global conn
      conn, addr = s.accept()
      print('Got a connection from %s' % str(addr))
      request = conn.recv(4096)
      print('Content = %s' % str(request))
      params = parse_params(str(request))
      
      if(params.get('mac') is not None and params.get('ssid') is not None and params.get('password') is not None):
          #get ssid/password Home wifi drom the android browser
          sta_if = network.WLAN(network.STA_IF)
          sta_if.active(True)             
          sta_if.connect(params.get('ssid'), params.get('password'))
          while not sta_if.isconnected():
              pass
            
          if(sta_if.isconnected()):

              f = open('mac.dat', 'w')
              f.write(unquote(str(params.get('mac'))))
              f.close()
              
              f = open('ssid.dat', 'w')
              f.write(unquote(str(params.get('ssid'))))
              f.close()
              
              f = open('password.dat', 'w')
              f.write(unquote(str(params.get('password'))))
              f.close()
              
              response = web_page_success()
              conn.send('HTTP/1.1 200 OK\n')
              conn.send('Content-Type: text/html\n')
              conn.send('Connection: close\n\n')
              conn.sendall(str(response))
              break
          else:
              send_config_page()
      else:
          send_config_page()
      gc.collect()
      sleep(0.5)

    gc.collect()
    sleep(0.5)


#app
do_connect()

if machine.reset_cause() == machine.DEEPSLEEP_RESET:
    print('woke from a deep sleep')
    if(sta_if.isconnected()):
        print('Connected to home wifi')
        boot()
        stop_socket_loop()
        stop_access_point()
        print('Turn to deep sleep')
        machine.deepsleep()
    else:
        start_access_point()
        start_socket_loop()
else:
    print('power on or hard reset')
    if(sta_if.isconnected()):
        print('Connected to home wifi')
        boot()
        stop_socket_loop()
        stop_access_point()
        print('Turn to deep sleep')
        machine.deepsleep()
    else:
        start_access_point()
        start_socket_loop()

Laurent

Web développeur freelance et surtout autodidacte, je navigue sur le web à la recherche de technologies plutôt bien fichue et performante pour mes développement web, app (mobile et desktop) et IOT (micropython, python). Après 9 ans de développement web, j'ai enfin créé un blog 😃. Je ne poste pas beaucoup mais j'espère que çà vous sera utile.

https://monkeytime.be/fr

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