Web時鐘

#web_clock.py

import machine

import network

import ntptime

import time

import socket

from machine import Pin, SoftI2C, RTC

from lcd_api import LcdApi

from i2c_lcd import I2cLcd

import dht # DHT11 感測器模組

I2C_ADDR = 0x27

totalRows = 2

totalColumns = 16

SSID = "Bili-Net"

PASSWORD = "0932388283"

rtc = RTC()

wifi_status = False # 初始化 Wi-Fi 狀態為未連線

# 初始化 DHT11 感測器 (接在 GPIO13)

dht_sensor = dht.DHT11(Pin(13))

# 將 GPIO12 設定為輸出以為 DHT11 提供電源

dht_power = Pin(12, Pin.OUT)

dht_power.value(1) # 拉高 GPIO12 提供電源

# GPIO14設置為輸入針腳，用於背光控制

backlight_control = Pin(14, Pin.IN, Pin.PULL_UP)

def set_timezone():

offset = 8 * 3600 # Offset for UTC+8

now = time.time() + offset

tm = time.localtime(now)

rtc.datetime((tm[0], tm[1], tm[2], 0, tm[3], tm[4], tm[5], 0))

print('Timezone set to Taipei (UTC+8). Current RTC time:', rtc.datetime())

def connect_wifi():

global wifi_status

wifi_status = False # 初始為未連線狀態

wifi = network.WLAN(network.STA_IF)

wifi.active(True)

wifi.connect(SSID, PASSWORD)

max_attempts = 10 # 設置最大嘗試連線次數

attempt_count = 0 # 初始化嘗試次數

while not wifi.isconnected() and attempt_count < max_attempts:

print("等待 Wi-Fi 連線... 嘗試次數:", attempt_count + 1)

time.sleep(1)

attempt_count += 1

if wifi.isconnected():

print("Wi-Fi 連線成功:", wifi.ifconfig())

wifi_status = True # 更新 Wi-Fi 狀態為已連線

# 取得 IP 地址

ip_info = wifi.ifconfig()

ip_address = ip_info[0]

# 將 IP 地址顯示在 LCD

lcd.move_to(0, 0) # 移動到 LCD 第一行

lcd.putstr("WiFi IP:")

lcd.move_to(0, 1) # 移動到 LCD 第二行

lcd.putstr(ip_address) # 顯示 IP 地址

else:

print("Wi-Fi 連線失敗，已達最大嘗試次數")

lcd.move_to(0, 0)

lcd.putstr("WiFi Fail")

def sync_time():

try:

ntptime.settime()

set_timezone()

print("時間校對完成:", time.localtime())

except:

print("時間校對失敗")

def control_backlight():

# 根據 GPIO14 的狀態控制 LCD 背光

if backlight_control.value() == 0:

lcd.backlight_off() # 假設有此方法，需要實際檢查您的 lcd 模組

else:

lcd.backlight_on() # 假設有此方法，需要實際檢查您的 lcd 模組

# 初始化 LCD

i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=10000)

lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)

# Wi-Fi 連接

connect_wifi()

sync_time()

# 網頁伺服器功能

def web_page():

# 讀取 DHT11 溫溼度

try:

dht_sensor.measure()

temp = dht_sensor.temperature()

hum = dht_sensor.humidity()

except OSError as e:

temp = "Error"

hum = "Error"

# 取得目前日期時間

current_time = rtc.datetime()

# 建立 HTML 網頁內容

html = """<html>

<head>

</head>

<body>

<h1>環境監控系統</h1>

</body>

</html>""".format(current_time[0], current_time[1], current_time[2], # 年, 月, 日

current_time[4], current_time[5], current_time[6], # 時, 分, 秒

temp, hum)

return html

# 建立 Socket 並等待連線

def start_web_server():

addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]

s = socket.socket()

s.bind(addr)

s.listen(1)

print('伺服器已啟動，等待連線...')

while True:

cl, addr = s.accept()

print('客戶端連線自', addr)

cl_file = cl.makefile('rwb', 0)

while True:

line = cl_file.readline()

if not line or line == b'\r\n':

break

response = web_page()

cl.send('HTTP/1.1 200 OK\r\n')

cl.send('Content-Type: text/html\r\n')

cl.send('Connection: close\r\n\r\n')

cl.sendall(response)

cl.close()

# 啟動網頁伺服器

start_web_server()

LCD 會顯示出所取得的IP

http：//所取得的IP

web 畫面