Sencillo Sistema de Control de Accesos: Utiliza el escáner de código de barras RTMU86 para controlar la cerradura directamente, sin utilizar el panel de control de acceso.

[python]
import binascii
from quopri import HEX
from socket import *
from time import ctime

HOST = '192.168.4.1'
PORT = 8888
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpSerSock = socket(AF_INET, SOCK_STREAM)
tcpSerSock.bind(ADDR)
tcpSerSock.listen(5)

id_list = ["12345678", "abcdefg"]

def calculate_bbc(data, len):
bbc = 0
for i in range(len):
bbc ^= data[i]
return bbc

def detection_id(data):
data_len = len(data)

if data_len < 8:
return 0

if data[0] == 0x55 and data[1] == 0xaa and data[2] == 0x30 and data[3] == 0x00:
bbc = calculate_bbc(data, data_len - 1)
if bbc == data[data_len - 1]:
id_len = data[4] + data[5] * 256
id = data[6:6+id_len]
print("read id=", id)
for cid in id_list:
if id == cid.encode("UTF-8"):
return 1

print("Id not registered:", id)
return 0
else:
return 0

def send_lock_open(client, ms):
buf = [0x55, 0xaa, 0x2a, 0x02, 0x00, 0x01, 0x00, 0x00]
if ms < 50: ms = 50
buf[6] = int(ms / 50)
buf[7] = calculate_bbc(buf, 7)
# print("send:", bytes(buf))
client.send(bytes(buf))

recv = client.recv(BUFSIZ)
if not recv:
return -1
# print(recv)
if recv == b'\x55\xaa\x2a\x00\x00\x00\xd5':
return 1
else:
return 0

def send_lock_close(client):
buf = [0x55, 0xaa, 0x2a, 0x02, 0x00, 0x00, 0x00]
buf[6] = calculate_bbc(buf, 6)
client.send(bytes(buf))

while True:
print('waiting for connection...')
tcpCliSock, addr = tcpSerSock.accept()
print('...connnecting from:', addr)

while True:
data = tcpCliSock.recv(BUFSIZ)
if not data:
break
# print(data)
if detection_id(data):
print('open the door')
if send_lock_open(tcpCliSock, 1000):
print('open the door success')

tcpCliSock.close()
tcpSerSock.close()

[/python]