inspired by this - This Arduino-powered business card looks like a Game Boy and runs Tetris (video) | Engadget - I was thinking of making a set up some funky business cards that used Arduino and a bluetooth Transceivers to communicate with each other
Wondering the feasibility and suggested BOM for this.
Was thinking of using ArduinoPro mini https://www.sparkfun.com/products/11114, and these bluetooth transceivers 30ft Wireless Bluetooth RF Transceiver Module serial RS232 TTL HC-05 for arduino | eBay
Basically want an LED to turn on if another cardholder is in the room, and maybe send a signal to the others if you press a button (something like nudgeables - http://www.nudgeables.com/)
Long term dream is to connect it to my android to communicate with all of them... but one thing at a time 