𝗦𝗺𝗮𝗿𝘁 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲

This project presents a compact Arduino-compatible SMD development board based on the ATmega328P-AU, designed to minimize external wiring while maximizing functionality. Core peripherals such as Bluetooth (HC-05), gesture sensing (APDS-9960), RGB indication, and audio feedback are integrated directly onto the PCB, enabling rapid prototyping for IoT and wearable applications.

𝗣𝗼𝘄𝗲𝗿 & 𝗜𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗲 𝗗𝗲𝘀𝗶𝗴𝗻

The board supports flexible power input through USB-C (5V) and a 12V barrel jack, regulated using dedicated LDOs for stable 5V and 3.3V rails. Standard Arduino GPIO headers, ICSP programming support, and onboard user input components ensure compatibility with existing Arduino workflows while maintaining a clean SMD-optimized layout.

𝗢𝗽𝗲𝗻-𝗦𝗼𝘂𝗿𝗰𝗲 & 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲

All schematic, PCB, Gerber, and 3D files are fully open-source under the MIT license, encouraging learning, customization, and community-driven improvements. This board is intended not just as a finished product, but as a reference design showcasing how multiple peripherals can be reliably combined into a single elegant PCB.