This project is a custom-designed, handheld gaming controller built around an Arduino Pro Micro. It leverages the ATmega32U4 microcontroller, which is chosen specifically because its native USB support allows the device to be instantly recognized by a computer as a standard Human Interface Device, functioning exactly like a plug-and-play keyboard or joystick without needing intermediary software.

For proportional movement and camera control, the controller features dual analog thumbsticks. These components are essentially two-axis potentiometers wired directly to the analog input pins of the microcontroller, continuously translating the physical angle of the sticks into variable voltage readings to enable smooth, fluid gameplay rather than simple on-off movement.

The digital input system consists of multiple tactile push-button switches arranged in a highly ergonomic and familiar layout. This includes a left-side directional cluster representing standard WASD keys, a right-side action button cluster representing ABXY, and top-mounted shoulder triggers, all tied to the digital I/O pins.

A few auxiliary components are integrated to complete the interface. Two central tactile switches are positioned to serve as primary menu, start, or select buttons, while a dedicated red LED paired with a THT current-limiting resistor sits in the middle of the board to provide immediate visual feedback for power or connection status.

All of these electronic components are routed and unified on a custom-fabricated printed circuit board. The PCB itself serves as the physical chassis of the controller, engineered with curved grips and precise footprint placements to fit comfortably in the hands, ensuring the raw hardware translates directly into a usable and robust peripheral.

You can also place it firmly in mechanical gamepad case -> on which i am currently working on. Hope i will complete it soon. I have given mounting holes to enable this feature.