One of the selling points of the Arduboy is how slim [Kevin Bates] was able to get the Arduino-compatible game system, which is perhaps less surprising when you realize that it originally started out as a design for an electronic business card. But compared to the recently unveiled Nano version, it might as well be the old school “brick” Game Boy.
Now to be clear, [Kevin] isn’t looking to put these into official production. Though it does sound like the bare PCBs might be going up for sale in the near future. This was simply an experiment to see how far he could shrink the core Arduboy hardware while still keeping it not only playable but also code-compatible with the full-size version. While “playable” might be a tad subjective in this case, the video after the break clearly demonstrates that it’s fully functional.
Inside the 3D printed case is the same ATmega32U4 that powers the Arduboy, a 64×32 0.49″ OLED display, and a tiny 25 mAh pouch battery. There’s even a miniature piezo speaker for the bleeps and bloops. All of the pinouts have remained the same so existing code can be moved right over, though the screen is now connected over I2C. [Kevin] has released the schematics for the board in keeping with the general open nature of the Arduboy project, though for now he’s decided to hold onto the board files until it’s clear whether or not there’s a commercial future for the Nano.
We’ve seen attempts to shrink the Arduboy down before, most notably down to the point it could fit inside of a Dreamcast Visual Memory Unit, but the Nano certainly raises (or is that lowers?) the bar considerably.