Wednesday 19 October 2011

RGB LED Matrix

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RGB LED Matrix






The circuit uses 74HC595 shift registers with output latch. Each shiftregister interfaces one color + one shiftreg for the matrix rows. The interfaces uses 6 I/O lines for faster speed and easier interfacing. An AVR running at 8MHz can update the matrix with 8 brightness levels displaying nice fading colors patterns or colored text (or both). The sample program creates fading color patterns using a sine table. For smoother display a double buffer was implemented. 


























to download the firmware please click here   

Download: rgbmatrix.c


Posted by 4uguyzz at 11:11

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