wifi.py

   1 # The MIT License (MIT)
   2 #
   3 # Copyright (c) Sharil Tumin
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining a copy
   6 # of this software and associated documentation files (the "Software"), to deal
   7 # in the Software without restriction, including without limitation the rights
   8 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 # copies of the Software, and to permit persons to whom the Software is
  10 # furnished to do so, subject to the following conditions:
  11 #
  12 # The above copyright notice and this permission notice shall be included in
  13 # all copies or substantial portions of the Software.
  14 #
  15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 # THE SOFTWARE.
  22 #-----------------------------------------------------------------------------
  23
  24 #Basic WiFi configuration:
  25
  26 from time import sleep
  27 import network
  28 import site
  29
  30 class Sta:
  31
  32    AP = "SSID"
  33    PWD = "PASSWORD"
  34
  35    def __init__(my, ap='', pwd=''):
  36       network.WLAN(network.AP_IF).active(False) # disable access point
  37       my.wlan = network.WLAN(network.STA_IF)
  38       my.wlan.active(True)
  39       if ap == '':
  40         my.ap = Sta.AP
  41         my.pwd = Sta.PWD
  42       else:
  43         my.ap = ap
  44         my.pwd = pwd
  45
  46    def connect(my, ap='', pwd=''):
  47       if ap != '':
  48         my.ap = ap
  49         my.pwd = pwd
  50
  51       if not my.wlan.isconnected():
  52         my.wlan.connect(my.ap, my.pwd)
  53
  54    def status(my):
  55       if my.wlan.isconnected():
  56         return my.wlan.ifconfig()
  57       else:
  58         return ()
  59
  60    def wait(my):
  61       cnt = 30
  62       while cnt > 0:
  63          print("Waiting ..." )
  64          # con(my.ap, my.pwd) # Connect to an AP
  65          if my.wlan.isconnected():
  66            print("Connected to %s" % my.ap)
  67            print('network config:', my.wlan.ifconfig())
  68            site.server=my.wlan.ifconfig()[0]
  69            cnt = 0
  70          else:
  71            sleep(5)
  72            cnt -= 5
  73       return
  74
  75    def scan(my):
  76       return my.wlan.scan()   # Scan for available access points