It’s hard to imagine an easier way to set up communications between an Android device and an Arduino using Bluetooth ... the cheap and ubiquitous HC-05 Bluetooth module. Having picked up one ...

Fortunately, Bluetooth modules like the HC-05 and HC-06 can send ... lines between your Arduino and Bluetooth module, and provide the proper input voltage level. This method requires zero software ...

[DastardlyLabs] saw a video about converting a PS/2 keyboard to Bluetooth ... Arduino uses for programming, you’ll have to remove it before uploading new code. If you need help reprogramming ...