This is a diy network clock

It can connect to the wifi network in your home, and then get an ip address, with this address, it will create a small server, you can access the clock through your mobile phone, and you can set the clock through the web page

Feature

1.RTC chip DS3231,high precision,Accuracy 2ppm

2.Set time by phone,Alarm setting，Year month day display

3.use usb 5v as power suply