Small 1.2 8x8 Red LED Matrix
Small 1.2 8x8 Red LED Matrix
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Make a scrolling sign, or a small video display with this 8x8 gridded red LED matrix. Only 1.2 on a side, it is quite visible but not so large it wont plug into a breadboard! 64 red 400mcd LEDs are contained inside the plastic body, in an 8x8 matrix. There are 16 pins on the side, 8 on each, with 0.1 spacing so you can easily plug it into a breadboard with one row on each side for wiring it up. Since the display is in a grid, you'll need to 18 multiplex control it. We suggest either using a 74HC595 and TPIC6B595 (using the 74HC' to control the 8 anodes at once and then using the TPIC' to drive one cathode at a time) or just using a single MAX7219 which will do the multiplexing work for you. The Arduino playground has a nice set of tutorials introducing the MAX7219 and 8x8 LED matrices
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