http_srv_esp_v2

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))
html='''<!DOCTYPE html><head>
        <meta name="viewport" content="width=device-width, initial-scale=1" charset="utf-8">
        <title>ESP8266</title></head><body><h1><center>ESP8266 Temperature: %s </h1></center></body></html>'''

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(request)
    #show_temper = ['<center><H1> temper: %s </H1></center>' % temper()]
    response =html % temper()
    conn.send(response)
    conn.close()