The PCB business card has long been a way for aspiring electronics engineers to stand out from their peers. Also, handing out a card with a two-player game is a great way to secure a few minutes of the employer’s time. [Ryan Chan] designed a business card that features a complete Tic-Tac-Toe game in addition to contact information.

[Ryan] He decided that an OLED display was too expensive to distribute anything and the LED matrix was too thick, so he decided to keep it simple and use an array of 18 LEDs with 9 of each of the two colors arranged in the familiar 3×3 grid. . An ATmega328p powered by an Arduino bootloader acts as the brains of the operation. To achieve a truly minimal design [Ryan] uses a single SMD button for control: a short press activates your selection, a longer press completes your action, and a few seconds of tapping switches the game to AI-completed single-player mode.

If you want to design your own Tic-Tac-Toe business card, [Ryan] was kind enough to download the schematics and code for his card. If you’re still wondering what type of PCB business card best represents you, these cards are worth checking out. refreshing ePaper screen or a a little Tetris game.

owing to [Abe] for a tip!

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