Our project is infact an Arduino with Serially Interfaced MAX7219 Operates an 8X8 LED Matrix to display a heart pattern. The MAX7219 IC is a serial input/output common-cathode display driver that ...

Posted in Arduino Hacks, LED Hacks Tagged acrylic, adafruit, arduino, art, aurora, borealis, led, matrix, northern lights, paint, painting, shadow box, vellum ← Help Decipher The DEFCON Badge ...

It looks simple enough – a 64-LED matrix illuminates as the pen draws shapes. But how does the circuit know which LED is under the pen? Good old fashioned matrix scanning is the answer.