there i just got started with the arduino mega2560 . i tried 8x8 matrix tube and after ~30secs i found the atmega2560 a bit hot that i can melt a small amount wax on it ! is there any sort of heatsink or a better way to use the matrix tube ? what i have done is to turn on a led is to turn on the positive side and turn off the negative side . i just tried that method because in my 1st beginner kit , the manual said this should be done incase of a common anode rgb led .
thanks alot
