Led matrices are fun toys. Who would not love blinkenlights? Electronics is hard. Electronics is much harder than programming. I had hard time trying to understand how do the led matrices work. What is best way to learn something? Build one yourself. Structure of Led Matrix In a matrix format LEDs are arranged in rows and columns. You can also think of them as y and x coordinates. Lets assume we have 4x4 matrix. Rows would be marked from A to D and columns from 1 to 4. Now we can address each...
