Licorice ink screen reader, suitable for 4.2-inch ink screen

Licorice ink screen reader, adapted to 4.2-inch ink screen
 
source project for Licorice ink 2.9-inch ink screen reader open source link https://oshwhub.com/jie326513988/SDka-mo-shui-ping-yue-du-qi
PCB design reference half sugar version latest 4.2 three-color ink screen calendar open source link https://oshwhub.com/HalfSweet/ThreeColorEPaper
 
20230130 update
3D printing shell by the licorice group friends dry grass must be designed and adapted and used Jiali Chuang 3d printing for printing verification stl file in the attachment
20230310 latest update
update 3D printing button file
 
added content:
① Add a dial button at the top to facilitate reading in portrait mode
 
The next version needs to be modified:
① The cable is too far down, which will cause the cable to fold after installation. The cable holder needs to be moved in the next version.
② The first version only completes the basic functions. The layout of the buttons and the dial buttons has not been verified for ergonomics. It needs to be modified after daily use.
 
Current problems
① When opening the serial port, the serial port will restart. The reason has not been found, but it does not affect normal use