Arduboy

Lore & Background

The Arduboy began as an electronic business card designed by Kevin Bates, an American Arduino enthusiast. The original version was 1.6 mm thick with the height and width of a credit card. In preparation for a consumer version, Bates moved to Shenzhen to work on the Arduboy at the HAX accelerator. Later consumer versions replaced the first version's touch-sensitive panels with physical buttons and added a protective plastic case, raising the thickness to 5 mm. A non-production smaller form factor called the Arduboy Mini was demonstrated in 2019, followed by the even smaller Arduboy Nano in 2021.

A Kickstarter campaign was planned in 2014 and funded through a Kickstarter campaign in 2015. The launch price of the original Arduboy was either $29 or $39. In August 2020, Arduboy announced the Arduboy FX, an upgraded version with a flash memory chip storing over 250 games on the device itself; it shipped around 2021 at a price of $54. In November 2025, an updated revision called the Arduboy FX-C was released, featuring over 100 additional games, a USB-C port, and multiplayer support via link cable, launching at $79.

The Arduboy is open-source hardware. Its compute platform is based on the Arduino, using an 8-bit ATMega32u4 microcontroller as the primary processor, RAM, and storage. The system ships with 2.5 kilobytes of RAM, 32 kilobytes of flash storage, and 1 kilobyte of EEPROM. The Arduboy FX and FX-C feature additional storage via an official modchip installed from the factory or aftermarket. The system uses a 1-bit 1.3 in 128x64px OLED display, stereophonic piezoelectric speakers for audio, and is powered by a rechargeable thin-film lithium polymer battery with a capacity of 180 mAh, providing about 5–8 hours of use. The Arduboy and Arduboy FX have a microUSB connector, while the FX-C uses USB-C. The console can also be used as a simple controller or input device for other systems. Casing is made from both aluminium and polycarbonate. A single-game version featuring an officially licensed version of Tetris is also available.

Reader's Guide

The Arduboy occupies a unique niche as an open-source handheld console that bridges hobbyist electronics and commercial gaming. Its origins as an electronic business card underscore its maker-culture roots, while the move to Shenzhen's HAX accelerator reflects the transition from prototype to consumer product. The system's open-source hardware and software have allowed a community of developers to create and share games, with the Arduboy FX and FX-C models expanding onboard storage to include hundreds of preloaded titles. The inclusion of an officially licensed Tetris version demonstrates the platform's reach beyond the open-source community. The Arduboy's small form factor, low cost, and programmability have made it a tool for learning electronics and game development, as well as a collectible for enthusiasts. Its continued revision—from the original through the FX to the FX-C with USB-C and link-cable multiplayer—shows ongoing development and support. The Arduboy's significance lies in its demonstration that a fully open-source game console can be produced and sold commercially, offering an alternative to proprietary handheld systems while maintaining a focus on simplicity and accessibility.

Did You Know?

• The original Arduboy was 1.6 mm thick, the height and width of a credit card.
• The Arduboy FX-C, released in November 2025, added multiplayer support via link cable.
• A non-production Arduboy Nano was demonstrated in 2021 with a smaller form factor than the Arduboy Mini.