[Digi-Key Follow me Issue 1] Task 3: Synchronize network time

zore

[Digi-Key Follow me Issue 1] Task 3: Synchronize network time [Copy link]

 

This post contains information about connecting to the network and synchronizing network time. The code is an example of live streaming.

Connect to the Internet

Connect to the network first

import network
import time
from machine import RTC
import ntptime
import urequests


wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect('wifi/热点名称', 'wifi/热点密码')

max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    print('等待连接')
    time.sleep(1)

if wlan.status() != 3:
    raise RuntimeError('联网失败')
else:
    print('网络已连接')
    status = wlan.ifconfig()
    print( 'ip = ' + status[0] )


r = urequests.get("https://www.digikey.cn/zh")
print(r.status_code)
print(r.headers)
r.close()

After running,

will appear

At this point the board has been successfully connected to the network.

Synchronize network time

After successfully connecting to the network, you can start synchronizing the network time.

import network
import time
from machine import RTC
import ntptime
import urequests


wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect('wifi/热点名称', 'wifi/热点密码')

max_wait = 10
while max_wait > 0:
    if wlan.status() < 0 or wlan.status() >= 3:
        break
    max_wait -= 1
    print('等待连接')
    time.sleep(1)

if wlan.status() != 3:
    raise RuntimeError('联网失败')
else:
    print('网络已连接')
    status = wlan.ifconfig()
    print( 'ip = ' + status[0] )

def show_local_time(timezone=8):
    rtc = RTC()
    now = time.time()
    now += timezone * 3600
    t = time.localtime(now)
    print(f'{t[0]}-{t[1]:02d}-{t[2]:02d} {t[3]:02d}:{t[4]:02d}:{t[5]:02d}')

rtc = RTC()
rtc.datetime((2020, 1, 1, 3, 9, 0, 0, 0))
print('校时前系统时间：')
show_local_time()
print('开始NTP校时. . .')
ntptime.host = 'cn.pool.ntp.org'
ntptime.settime()
print(f'校时后系统时间：')
show_local_time()

After running, it will appear

At this point, the network time synchronization has been successfully completed.

wangerxian

Synchronizing the network clock means getting data from a server, right?

zore

wangerxian posted on 2023-6-30 16:14 Synchronizing the network clock means getting data from a server, right?

Yes, yes.

lugl4313820

Congratulations on completing your homework: synchronizing network time. It seems to be quite easy.

zore

lugl4313820 posted on 2023-7-1 09:05 Congratulations on completing the assignment: synchronizing network time. It seems to be quite easy.

Congratulations, it is really easy to follow the live teacher.