It’s technically a Nokia smartwatch. The watch itself runs off an Arduino board, and manages to fit a Bluetooth module and 3.7v battery into the 3D-printed watch case.

A FT-232 USB to serial board is used to program the Arduino. A standard Bluetooth module has to have HID firmware installed. [Dastardly] makes a homemade daughterboard–er, ...

The Arduino processes the data and then transmits it to a smart phone via a Bluetooth module. The whole circuit is powered from the boat battery using a DC adapter. The electronics are protected ...

The Arduino, Bluetooth module (check your specs, some HC-05, and HC-06 may come on a breakout board expecting 5V), and USB Host shield all run off of 3.3V, but devices you want to plug into the ...

Overall, Arduino Bluetooth Controller is a usable app, but it’s not the best option on this list. Arduino Bluetooth Controller by Giumig Apps. Giumig’s Arduino Bluetooth Controller features some of ...

You know, we don't see too many didgeridoos in these parts (and for good reason, seeing as how it is little more than a pipe) but wait'll to you get a load of this aerophone-wielding maniac: Kyle ...