http_srv_esp8266

import machine
import ds18x20
import onewire
import socket

def temper():
    pin = machine.Pin(0)
    ds = ds18x20.DS18X20(onewire.OneWire(pin))
    ds_temp = ds.scan()
    for i in ds_temp:
        ds.convert_temp()
        return ("%.2f" % ds.read_temp(i))

t=temper()

html = """<!DOCTYPE html>
<html>
    <head>
    <meta name="viewport" content="width=device-width, initial-scale=1" charset="utf-8">
    <title>ESP8266</title>
    </head>
    <body> <h1>ESP8266 Temperatura</h1>
        температура: %s
        <form>
        <button name="TEMP" value='SHOW' type='submit'> Показать температуру </button>
        </form>
    </body>
</html>
""" % str(t)

addr = ('192.168.0.20', 80)

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.bind(addr)
s.listen(1)

print('listening on', addr)

while True:
    conn, addr = s.accept()
    print('client connected from', addr)
    #cl_file = conn.makefile('rwb', 0)
    request=conn.recv(1024)
    #print("Content %s" % str(request))
    print(request)
    #show_temper = request.find("/?TEMP=SHOW")
    show_temper = ['<center> temper: %s</center>' % temper()]
    response = html.join(show_temper)
    conn.send(response)
    conn.close()