import network, time

wlan_sta = network.WLAN(network.STA_IF)
wlan_sta.active(True)
#wlan_sta.disconnect()

wlan_sta.connect("WLAN-Name","WLAN-Passwort")                   

print("Verbinde mit WLAN .",end="")
while not wlan_sta.isconnected():
  print(".",end="")
  time.sleep(0.2)
print("\nMit WLAN verbunden")

print(wlan_sta.ifconfig())
print(wlan_sta.ifconfig()[0])
print("\nhttp://"+wlan_sta.ifconfig()[0]+"\n\n")

import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)

from machine import Pin
led1 = Pin(  2, Pin.OUT)  # GPIO2  -  TX/D9
led2 = Pin( 14, Pin.OUT)  # GPI14  -  ..
while True:
  conn, addr = s.accept();
  print('Habe ein Verbindung: ', str(addr))
  request = str(conn.recv(1024), "UTF-8")
  print("request = \n",request)
  response = '<a href="led1_blinken?anz=20&t_an=0.5&t_aus=0.2">Blinken mit Parametern per GET</a>'

  if request.find("GET /led1_on")==0:
    response = "LED1 ein\n"
    led1.value(0)
    
  if request.find("GET /led1_off")==0:
    response = "LED1 aus\n"
    led1.value(1)

  if request.find("GET /status")==0:
    print("\nweb_pages.esp_status\n")
    response  = "LED 1 = " + str(led1.value())
    response += " und LED 2 = " + str(led2.value())
    
  if request.find("GET /led1_blinken")==0:
    print("--- LED 1 blinken ---")
    txt = request.split("\r\n")[0]
    txt = txt.replace("GET /led1_blinken?","").replace(" HTTP/1.1","")
    print(txt)
    parameters = txt.split("&")
    wert = {}
    for parameter in parameters:
      name, value = parameter.split("=")
      wert[name]  = value
    response = "Led 1 blinkt " + str(wert['anz']) + " Mal "
    frequenz = 1 / ( float(wert['t_an']) + float(wert['t_aus']) )
    response += "mit einer Frequenz von " + str(frequenz) + " Hz."
    print(response)
    for i in range(int(wert['anz'])):
        led1.value(1)
        time.sleep(float(wert['t_aus']))
        led1.value(0)
        time.sleep(float(wert['t_an']));
        
  conn.send(response)   
  conn.close()