Baseline: Migrated from local arduino IDE project, compiles but contains dead code and needs refactoring

src/conversation_history.md

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+# Conversation History
+
+**User:** Is there a way I can view our conversation history?
+
+**Gemini:** I do not have a command to view the conversation history. You should be able to scroll up in your terminal to see our previous messages.
+
+**User:** Ah I'm looking for a conversation from yesterday. No worries
+
+**Gemini:** Got it. Terminal scrollback usually doesn't persist between sessions.
+
+I can save our conversations to a file for you to review later. Would you like me to set that up?
+
+**User:** That's not a bad idea. what file type would you use?
+
+**Gemini:** I would use a Markdown (`.md`) file.
+
+This format is easy to read and is great for preserving the formatting of any code snippets we might discuss. I can name it `conversation_history.md`.
+
+Does that sound good?
+
+**User:** yeah that sounds good! also for a quick overview of the project, you can read "info.txt".
+
+**Gemini:** Sounds good. I'll create `conversation_history.md` and start logging our conversation.
+
+Thanks for the tip, I'll read `info.txt` now to get an overview of the project.
+
+**User:** Please continue.
+
+**Gemini:** Of course. Based on the `info.txt` file, I see that a "Calculator" program is on the list of required programs, but I don't see any corresponding files for it in the project structure.
+
+I can start by creating the basic files for the calculator program:
+1.  Create a `Programs/Calculator` directory.
+2.  Create `Calculator.h` and `Calculator.cpp` inside the new directory.
+3.  Add a basic class structure to these files.
+
+After that, I can work on integrating it into the main menu.
+
+Would you like me to proceed with creating these files?
+
+**User:** yeah go for it!
+
+**Gemini:** Great. I'll create the directory and the basic files for the calculator program.
+
+**User:** sure
+
+**Gemini:** Okay, I will now read `Menu.h` and `Menu.cpp`.
+
+**User:** yeah looks good
+
+**Gemini:** Alright, I'll start by updating the header file (`Calculator.h`) with the necessary variables for the UI and a private function to handle drawing. Then, I'll implement the initial drawing logic in `Calculator.cpp`.
+
+This first step will just render the static UI on the screen. We'll handle input and logic next.
+
+**User:** yeah sure
+
+**Gemini:** Okay, I will now add the joystick handling logic to the `loop` function in `Calculator.cpp` to enable cursor movement. I'll use the same input detection method as the main menu to ensure consistent behavior.
+
+**User:** I just had to quickly correct a typo. you put "Adafruit_SSD1151" in Calculator.cpp instead off 1351. easily done! other than that, the code succsesfully compiles! well done! Yes, you can proceed
+
+**Gemini:** Thank you for catching that typo! I appreciate you fixing it and letting me know the code compiles. That's great news.
+
+I will now proceed with implementing the button press logic as we discussed. I'll add the code to detect when the joystick button is released and print the selected grid item to the serial port for verification.
+
+**User:** ok. I will test your implementation now
+
+**Gemini:** Sounds good. I'll wait for your feedback.
+
+**User:** that works suprising well. However, there are a couple of issues. the main one is that the screen is flickering a lot. also, The controls with the joystick are a bit inconsistent. for example I my push the joystick in one direction, but the computer may read multiple inputs in the wrong direction. This may be hardware limitaion and I may need to invest in a d-pad
+
+**Gemini:** You've found some excellent points. Your analysis is spot on.
+
+1.  **Screen Flickering:** You are right, this is the main issue. It's happening because the code is clearing and redrawing the entire screen on every single frame. This is inefficient and a classic cause of flickering.
+2.  **Joystick Input:** The input detection logic is quite simple. If the joystick hardware is a bit "noisy," it can definitely produce ghost inputs like you're seeing.
+
+Let's tackle the flickering first, as that's a definite software bug I can fix.
+
+I will modify the drawing code to only clear the top part of the screen where the numbers are displayed, rather than the whole screen. The rest of the UI will just be drawn over itself. This should eliminate the most noticeable flickering.
+
+Shall I apply this fix?
+
+**User:** yes please
+
+**Gemini:** Okay, I'm applying the fix to reduce screen flickering now.
+
+**User:** yes please
+
+**Gemini:** The rendering fix has been applied. The button backgrounds should now correctly revert to black when the cursor moves away.
+
+Please give it a test when you have a moment. Once you confirm it's working as expected, we can proceed with implementing the calculator's operator and equals logic.
+
+**User:** Please continue.
+
+**Gemini:** Understood. I will proceed with implementing the final piece of the calculator's functionality: the operator and equals buttons.
+
+I will now modify the `handleButtonPress` function to perform the calculations.
+
+**User:** no it's ok. One thing you could do that would be great is implement a draw keyboard method in the keyboard.cpp file
+
+**Gemini:** Okay, I can definitely work on that.
+
+I see the file `Programs/Keyboard.h`, but I don't see a corresponding `Keyboard.cpp` file. I'll need to create that file to implement the `drawKeyboard` method.
+
+Before I start, I'll need to read `Keyboard.h` to understand the existing class structure. Shall I proceed with reading the header file?
+
+**User:** ah, check now. I had create a keyboard.cpp but it was lowercase by mistake. there is a method called render in there. if you could implement it in there that would be fantastic
+
+**Gemini:** Ah, I see it now. Thank you for clarifying. I can certainly implement the `render` method in `keyboard.cpp`.
+
+For the keyboard layout, I propose a simple 6x5 grid to fit the screen and make navigation manageable:
+```
+[A][B][C][D][E][F]
+[G][H][I][J][K][L]
+[M][N][O][P][Q][R]
+[S][T][U][V][W][X]
+[Y][Z][.][<][ENT]
+```
+Here, `<` would be backspace and `ENT` would be enter. The `render` method would draw this grid, highlight the currently selected key, and show the composed text at the top of the screen.
+
+Does this approach sound good? If you agree, I'll read the keyboard header and source files to begin the implementation.
+
+**User:** yeah I like it
+
+**Gemini:** Great. I'll read the `Keyboard.h` and `keyboard.cpp` files now to get started.
+
+**User:** yeah I agree with that
+
+**Gemini:** Excellent. I'll start by modifying `Keyboard.h` to update the `render` method and add the necessary variables to manage the keyboard's state, like the cursor position and the grid layout.