> For the complete documentation index, see [llms.txt](https://computational-thinking-in-room11.gitbook.io/room-112-dhs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://computational-thinking-in-room11.gitbook.io/room-112-dhs/software-development/1st-design-project/what-should-i-do.md).

# What should I do?

![This is the Software Design Cycle from the College Board (R) for the AP CSP Course](/files/-LqCOhn4381hmnFdhn8_)

I just defined the problem: Create a system to send an LED signal when teachers have mail in their boxes

Now Understand the Problem: Talk with your partner about both the programming skills you have, the materials you will have and the space limitations of the box

Things you might want to consider:

* [ ] How will the "system" be attached to the box?
* [ ] What will turn on the light?
* [ ] What happens when the mail is removed from the box?