Discontinued - you can grab this Medium 16x32 RGB LED matrix panel - 6mm Pitch instead! These LED panels take care of all the work of making a big matrix display. Each panel has six 8x8 red matrix modules for a 16x24 matrix. The panel has an HT1632C chip on the back which does all the multiplexing work for you and has a 3-pin SPI-like serial interface to talk to it and set LEDs on or off (you cannot set the LED to be individually dimmed, as in 'grayscale'). There are a few extras as well, such as...