How To Make 8x8 LED Matrix | DIY 8x8 Led Matrix With Arduino | Arduino Projects | ELECTRUINO

#Shorts #Electruino #Electronics #Arduino #LED-Matrix #LED
Components Required:-
Arduino Uno
64 LEDs
Perfboard with other soldering tools
1KΩ resistor (8 pieces)
Power Supply (5v)
Circuit and Working Explanation:-
There are 64 LEDs arranged in a matrix form. So we have 8 columns and 8 rows. Over those rows and columns, all the positive terminals in a row are brought together. For each row, there is one Common Positive Terminal for all 8 LED in that row. It is shown in Link( drive.google.c... )
So for 8 rows we have 8 common positive terminals. Consider the first row, as seen in the figure, 8 LEDs from D57 to D64 have a common positive terminal and are denoted by ‘POSITIVE0’. Now if we want glow one or all LEDs in the first ROW of matrix, then we should power the PIN0 of LED Matrix. Likewise if we want to glow any LED (or all) in any ROW then we need to power the corresponding Common Positive Terminal Pin of that respective Row.
This is not over yet and just leaving the MATRIX ROWS with positive supply will not yield anything. We need to ground the LEDs negatives to glow them. So in 8x8 LED matrix, all the negative terminals of the LEDs in any column are brought together to form eight Common Negative Terminals, like all the negative terminals in first column are connected together to the PIN-A1 (NEGATIVE7). This is shown in This Link (drive.google.c... )
One should pay attention to these pins while soldering the LEDs on Perfboard.
Now if we need to ground any LED in the first column then we will ground the PIN-A1 (NEGATIVE7) of the MATRIX, and it will ground all the LEDs in first column. The same process goes for all the other seven common negative columns.
Since now you know how Common Positive and Common Negative works. Let’s put them together to see how they work together and the final Circuit for Scrolling 8x8 LED Matrix display will look like this (drive.google.c... )
:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-Download Links:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-
Arduino code:- drive.google.c...
Schematic Diagram:- drive.google.c...

[@lenspalace3942]

What is I want the text to scroll from right to left instead of bottom to top?

[@ElectruinoDiy]

so easy i can help you

[@gamerash9329]

Song name

[@ElectruinoDiy]

i forget the name

[@이상선-j7v]

warriyo - mortals
th-cam.com/video/yJg-Y5byMMw/w-d-xo.html