The most the challenges that I encountered is the complete complexity of implementing the LCD screen. It is extremely hard to find a working library that can be compatible with the screen in a short time. And It is also tough to make sure all the parts are working together without a freaking each other. In addition to that, the particleboard is very fragile, and it is very easy to break. I will definitely start early on this project to avoid any unexpected accidents that will prevent me from moving forward. Other than the point above, I also realized that the complexity of design on the board. Meeting all the feature requirements is not a one-step work. It is crucial to make sure thinking carefully before starting implementation.