With little more than an Arduino, an OLED display, and some buttons, it’s easy to build your own faux-retro game system. There’s even a growing library of titles out there that target this ...

The combination of a transparent OLED display, Arduino Nano Every microcontroller, HC-05 Bluetooth module, and a small LiPo battery results in a functional and versatile piece of wearable technology.

This Game Boy look-alike, for instance, demonstrates its creator's skills in one fell swoop: It doesn't just display a résumé, it's also a simple gaming handheld that can play Tetris.