We will show you how to easily convert the jolliFactory Bi-color LED Matrix module (MAX72xx IC based) into a single color LED Matrix module and build a project with these modified modules.
The project we will be building is an Arduino based clock cum temperature/humidity LED Matrix display based on one of the examples from the awesome Arduino Parola library created by Marco Colli.
Full detail on building this project can be found at http://www.instructables.com/id/Arduino-Parola-Zone-Time-Msg-Display/
Video: http://www.youtube.com/watch?v=ksNxcCyLTFs