树莓派PICO W网络操作（联网）-青柠博客

Life is simple.You make choices and you don't look back.

人生很简单，做了决定就不要后悔

连接网络

连接网络，当正在连接的时候，自带led闪烁，当连接成功后led灯熄灭


import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)
# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()
# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )
import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)

# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()

# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )
import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)

# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()

# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )

urequests发送GET请求

注意！！使用urequests库发出请求后，必须使用response.close()关闭返回的响应对象。如果
不这样做，对象将不会被垃圾回收，如果请求是在循环中发出的，会出现不可预料的事。


import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()

完整代码


import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)
# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()
# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )
    
    
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()
import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)

# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()

# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )
    
    
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()
import network
import time
from machine import Pin, Timer
ssid = 'Xiaomi_FANFAN'# 你的wifi名字
password ='yangfan0522'# 你的wifi密码

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(ssid, password)
led = Pin("LED", Pin.OUT)

# Wait for connect or fail
max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    led.on()
    print('正在联网...')
 
    time.sleep(1)
    led.off()

# Handle connection error
if wlan.status() != 3:
    raise RuntimeError('network connection failed')
else:
    print('连接成功')
    status = wlan.ifconfig()
    
    print( 'ip = ' + status[0] )
    
    
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.content)
r.close()

重定向https


import urequests
r = urequests.get('https://www.baidu.com/')
print(r.status_code) # redirects to https
r.close()
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.status_code) # redirects to https
r.close()
import urequests
r = urequests.get('https://www.baidu.com/')
print(r.status_code) # redirects to https
r.close()

简单的支持json


import urequests
import ujson
r = urequests.get("http://date.jsontest.com/")
print(r.json())
r.close()
import urequests
import ujson
r = urequests.get("http://date.jsontest.com/")
print(r.json())
r.close()
import urequests
import ujson
r = urequests.get("http://date.jsontest.com/")
print(r.json())
r.close()

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