For this project, we will be building a Scrolling Text Display driven by an Arduino Nano using 7 x Bi-color (Red and Green) LED Matrix Driver Module kits from jolliFactory. For this display, messages and commands can be sent to it via Bluetooth using an Android Smart Phone.
Full detail on building this project can be found at http://www.instructables.com/id/Arduino-SPI-7-Bi-color-LED-Matrix-Scrolling-Text-D/
Video : http://www.youtube.com/watch?v=Sw6MMT-rvLQ