DHT22温湿度计——记录55秒温度

2021/11/17
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import dht
import network
import socket
import utime
from machine import Pin, Timer

led2 = Pin(2, Pin.OUT)
led2.value(1)
utime.sleep(10)
espht = dht.DHT22(Pin(4))
tm = Timer(10)
tm1 = Timer(11)
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)
dht22t = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
dht22h = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

def ap(ESSID):
    if_ap = network.WLAN(network.AP_IF)
    if_ap.active(True)
    if_ap.config(essid=ESSID, authmode=0)

def LED_up(t):
    led2.value(0)
    utime.sleep_ms(5)
    led2.value(1)

def Getdht22tha():
    del dht22t[0]
    del dht22h[0]
    espht.measure()
    dht22t.append(str(espht.temperature()))
    dht22h.append(str(espht.humidity()) + "%")
    return dht22t, dht22h

def web_page():
    blist = []
    tlist = []
    hlist = []
    bb = ""
    th22t, th22h = Getdht22tha()
    for i in th22t:
        tlist.append(i)
    for i in th22h:
        hlist.append(i)
    tlist.reverse()
    hlist.reverse()
    for i in range(12):
        c = "<p>" + str((i*5)) + "ago:T" + str(tlist[i]) + ",H" + str(hlist[i]) + "</p>"
        bb += c
        blist.append(bb)
    html = """<!DOCTYPE HTML><html><head><title>DHT22_T&H</title>
        <meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="icon" href="data:;base64,="><meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
        <script> function countDown(){ var time = document.getElementById("Time"); if(time.innerHTML == 0){ window.location.href="http://192.168.4.1"; }
        else{ time.innerHTML = time.innerHTML-1; } } window.setInterval("countDown()",1000); </script>
        <style> html { font-family: Arial; display: inline-block; margin: 0px auto; text-align: center; }
        h2 { font-size: 3.0rem; } p { font-size: 1.0rem; } .units { font-size: 1.2rem; } 
        .ds-labels{ font-size: 1.5rem; vertical-align:middle; padding-bottom: 15px; } #Time,#p{    font-size: 1.0rem; text-align: center; }
        </style></head><body><h2><i class="fas fa-thermometer-half" style="color:#059e8a;"></i> 
        <span id="temperature"> """+str(tlist[0])+""" </span><sup class="units">&deg;C</sup></h2><h2><i class="fa fa-tint" style="color:#059e8a;"></i><span id="humidity"> """+str(hlist[0])+""" </span><sup class="units"></sup></p>
        """+str(blist[11])+"""<font color="yellow"><p id="Time" >5</p></font></body></html>"""
    return html


if __name__ == "__main__":
    tm.init(freq=(1 / 60), mode=Timer.PERIODIC, callback=LED_up)
    ap("DHT22_T&H")
    while True:
        try:
            conn, addr = s.accept()
            conn.settimeout(5.0)
            request = conn.recv(1024)
            conn.settimeout(None)
            request = str(request)
            response = web_page()
            conn.send('HTTP/1.1 200 OK\n')
            conn.send('Content-Type: text/html\n')
            conn.send('Connection: close\n\n')
            conn.sendall(response)
            conn.close()
        except OSError as e:
            conn.close()