網頁控制LED-micropython
因為是用內建的LED所以不用接任何杜邦線
程式碼
from machine import Pin
import network, socket
ssid="---"
password="------"
led=Pin(2, Pin.OUT)
ledState="OFF"
def sw_page():
if led.value() == 1:
ledState="ON"
else:
ledState="OFF"
html="""
<html>
<head>
<title>ESP32 網頁伺服器控制練習</title>
<meta name="viewport" content="width=device-width, initial
scale=1">
<link rel="icon" href="data:,">
<style>
html {
text-align: center;
font-family: Arial;
display: inline-block;
margin: auto;}
.button {
background-color: #e0e252; /* Green */
border: none;
color: white;
padding: 15px 35px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
}
.button2 {
background-color: #b0b1a2; /* Green */
padding: 15px 32px;
}
</style>
</head>
<body>
<h1>ESP32 網頁伺服器控制練習</h1>
<p>GPIO-2 狀態: <strong>""" + ledState + """</strong></p>
<p><a href="/on"><button class="button">ON</button></a></p>
<p><a href="/off"><button class="button button2">OFF</button></a></p>
</body>
</html>
"""
return html
wifi=network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(ssid, password)
while wifi.isconnected()==False:
pass
print("connected sccessful!")
print("IP: {}".format(wifi.ifconfig()))
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)
while True:
conn, addr = s.accept()
print("got a connect from %s"%str(addr))
request = conn.recv(1024)
request = str(request)
print("context = %s"%request)
led_on = request.find("/on")
led_off = request.find("/off")
if led_on == 6:
led.value(1)
print("ON")
if led_off == 6:
led.value(0)
print("OFF")
respones = sw_page()
conn.send("HTTP/1.1 200 OK\n")
conn.send("Context-Type: text/html\n")
conn.send("Connection: close\n\n")
conn.sendall(respones)
conn.close()
解析
匯入腳位和wifi和套接的模組
from machine import Pin
import network, socketwifi連線設定
ssid="基地台名稱"
password="基地台密碼"
wifi=network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(ssid, password)
while wifi.isconnected()==False:
pass
print("connected sccessful!")
print("IP: {}".format(wifi.ifconfig()))
主要這裡是前端網頁,if和else是在控制網頁的開啓就顯示ON,否則顯示OFF
def sw_page():
ifled.value()==1:
ledState="ON"
else:
ledState="OFF"
html="""
<html>
<head>
<title>ESP32 網頁伺服器控制練習</title>
<meta name="viewport" content="width=device-width, initial
scale=1">
<link rel="icon" href="data:,">
<style>
html {
text-align: center;
font-family: Arial;
display: inline-block;
margin: auto;}
.button {
background-color: #e0e252; /* Green */
border: none;
color: white;
padding: 15px 35px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
}
.button2 {
background-color: #b0b1a2; /* Green */
padding: 15px 32px;
}
</style>
</head>
<body>
<h1>ESP32 網頁伺服器控制練習</h1>
<p>GPIO-2 狀態: <strong>""" + ledState + """</strong></p>
<p><a href="/on"><button class="button">ON</button></a></p>
<p><a href="/off"><button class="button button2">OFF</button></a></p>
</body>
</html>
"""
return html以下是套接
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)
while True:
conn, addr = s.accept()
print("got a connect from %s"%str(addr))
request = conn.recv(1024)
request = str(request)
print("context = %s"%request)
led_on = request.find("/on")
led_off = request.find("/off")
if led_on == 6:
led.value(1)
print("ON")
if led_off == 6:
led.value(0)
print("OFF")
respones = sw_page()
conn.send("HTTP/1.1 200 OK\n")
conn.send("Context-Type: text/html\n")
conn.send("Connection: close\n\n")
conn.sendall(respones)
conn.close()
