ESP32 Network Time Synchronization

lemon1394

ESP32 Network Time Synchronization [Copy link]

 

ESP32 has its own network module, and network time synchronization can be enabled after connecting to WIFI.

MicroPython comes with the ntptime module, which can easily sync time over the network.

import ntptime

ntptime.NTP_DELTA = 3155644800   #设置北京时间

ntptime.host = 'ntp.aliyun.com'  #设置校时服务器

ntptime.settime()                #机器时钟校时

• 3155644800 = 3155673600-28800
• 3155673600 = (date(2000, 1, 1) - date(1900, 1, 1)).days * 24*60*60
• 28800 = 8*60*60
• The time obtained by ntptime is UTC, which is 8 hours different from Beijing time. Since the time zone cannot be set, a compromise was found.
• ntp.aliyun.com,ntp1.aliyun.com~ntp7.aliyun.com can be selected