matrix 8*8

Matrix 8x8

Hello guys , here we are again to learn utilisation of another device. Today's device is Matrix of led.


First we gonna start by defining a matrix led, how it is build from inside, number of pins and how to connect it.

Matrix led

a matrix led is a display device, it's easy to use and it have many applications in real life, such as various types of electronic display panels and in other projects.

today we gonna use a 8x8 matrix. so we have a 64 led , it can be of any color (red, green, blue, ...) . this leds are wired as it's shown in the picture below (every row have a common anode and a different cathode and every colomn have a common cathode and a different anode ).

 that's  give us a 16 pin s to connect to our microcontroller but sometimes it's too much and we can't connect any other device with it so today we gonna show you two different ways to connect a matrix led. for this tutorial we will just connect it simply.


first let's start by defining the function of each pin

1:	R5
2:	R7
3:	C2
4:	C3
5:	R8
6:	C5
7:	R6
8:	R3

9: R1 10: C4 11: C6 12: R4 13: C1 14: R2 15: C7 16: C8

with R : row

        C : col

connect matrix simply 

we ll just connect the 16 matrix pins with our microcontroller(arduino in our case) directly 

download code : click here