![]() We do the same for the anodes, but for each eight columns, not for the entire 32 that the matrix has now we have all these negative pins of the LEDs connected and the positive pins as well. So what we will do is take a bunch of these LEDs and connect their kettles in series creating eight rows. So if we connect the kettle to ground and apply five volts to the anode, the LED would shine. So let’s say that this LED works with five volts. This component only allows current to flow in one direction, in this case, from the positive side to the negative one. The other one is called cathode and is the negative one, just as any other diode. One is called anode and is the positive one and usually it’s longer than the other one. I would like to explain a little bit how this type of matrices work. That will give us a total of 256 LEDs before we start building it. Our matrix will have eight rows and 32 columns. I’Ve used this 10 millimeter diameter made green LEDs. We’Ll come back in order to build our awesome huge, LED matrix. ![]() So now let’s see how to create this huge, LED, matrix, let’s up my friends. A screwing effect of your text connect your smartphone to it open the app type your desired text and press send. ![]() It made with 256 10 millimeter diameter green LEDs, it’s controlled by an Arduino and 4 LED drivers, each driver for each 8×8 matrix.
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