4.2-inch ink screen calendar lunar calendar reminder countdown Esp8266

One of the earliest versions of the calendar,    the ink screen only supports Weixue 4.2 three-color ink screen.

With the lunar weather countdown, you can switch the countdown and calendar display. The countdown name only supports festivals, Lunar New Year, winter and summer vacations, school dates, etc.

The distribution network should be 192.168.4.1 and other versions should be similar.

OTA is invalid because the program size exceeds the standard -_-b

The work is relatively rough, and the interface may be slightly changed in the future.

The free version of 
PCB uses the latest 4.2pcb of the half-sugar version. Thanks to the half-sugar version of pcb. The open source link https://oshwhub.com/HalfSweet/ThreeColorEPaper.
The distribution network interface is referenced from the glycyrrhizic acid and non-acid open source project. Thanks to https://oshwhub. .com/jie326513988/tian-qi-mo-shui-ping

The ink screen driver part comes from WeiXue official website

The following content is extremely important! ! ! !

I am not very good at it. If you have professional technical problems and various other problems, please solve them by yourself, including but not limited to pcb BOM table, welding, purchase link, unable to flash firmware, ink screen does not display, distribution network interface does not display, weather forecast Not displayed, blah blah blah blah...

Firmware address

Since the firmware has some usage defects, we will release an updated version after we have time to fix the bugs in the future.