This is my third and newest LED display shield for Arduino. It features two 8x8 RG (red/green/orange) 3mm LED matrices and it has the Arduino form factor, so it stacks perfectly on top of an Arduino 2009/Uno.
This Bi-color LED mini-display shield uses a similar schematic as my other Dual LED matrix shield, based on four 595 shift registers and a driver, in SMD package. The two 8x8 RG LED matrices plug into the machined (round) female headers.
The photo below shows all 3 LED shields together for size comparison, along with an Wiseduino. The "LED mini-display shield" introduced here is in the top-right corner. (All other shields in the photo are sold out.)
This LED mini-display shield also features 2 right-angle micro push buttons.
The LED mini-display shield comes fully assembled and tested.
The LED mini-display shield can be seen in this video, plugged into an Arduino running a test sketch.
The source code used in this demo can be found here.
Images of the schematic (download Eagle file) and board (download Eagle file) can be seen below.