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 ...

[Bill2009] has made some nice progress on a control panel for his motorcycle over at the arduino.cc forums. It can show speed, tachometer readings for the wheel and engine, as well as indicate the… ...

He takes a garden-variety Arduino and a cheap Bluetooth interface board and then controls it from Chrome. You can see the video below. The HM-10 board is cheap and could connect to nearly anything.