graph TD;
    ATMEGA32U4["Microcontroller\nATMEGA32U4-AU"]
    USB_Port["USB Connector\nUSB4105-GF-A"]
    Crystal["Crystal Oscillator\nABM3C-16.000MHZ-D4Y-T"]
    D1["Diode\n1N5819HW-7-F"]
    F1["Fuse\nMF-MSMF050-2"]
    FB1["Ferrite Bead\nMH2029-300Y"]
    D2["Dual Schottky Diode\n82400102"]
    Reset_Button["Reset Button\nPTS815 SJM 250 SMTR LFS"]
    ISP_Header["ISP Header\n61200621621"]

    ATMEGA32U4 -->|USB D+ / D-| USB_Port
    ATMEGA32U4 -->|XTAL1 / XTAL2| Crystal
    ATMEGA32U4 -->|Power| F1
    F1 -->|Power| USB_Port
    Crystal -->|Clock Signal| ATMEGA32U4
    D1 -->|Power Protection| ATMEGA32U4
    FB1 -->|Power Filter| ATMEGA32U4
    Reset_Button -->|RESET| ATMEGA32U4
    ISP_Header --> ATMEGA32U4
    D2 -->|USB Data| USB_Port

• The ATMEGA32U4 block represents the main microcontroller.
• USB_Port connects to the USB interface.
• Crystal provides the clock signal to the microcontroller.
• D1 serves as a protection component for power lines.
• F1 is a resettable fuse in the power line.
• FB1 acts as a ferrite bead for filtering noise.
• D2 is involved in the USB data line.
• Reset_Button provides the reset functionality.
• ISP_Header is used for in-system programming of the microcontroller.