Skull 8x8 LED Matrix Arduino

Send bytes to an 8x8 LED matrix and create a skull.

Nov 19, 2022

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Devices & Components

Arduino Uno Rev3

Jumper wires (generic)

Breadboard (generic)

LED Dot Matrix Display, Red

Software & Tools

Arduino IDE

Project description

Code

Skull LED 8x8 Matrix

c_cpp

1void setup() {
2  
3pinMode(2, OUTPUT);
4pinMode(3, OUTPUT);
5pinMode(4,  OUTPUT);
6pinMode(5, OUTPUT);
7pinMode(6, OUTPUT);
8pinMode(7, OUTPUT);
9pinMode(8,  OUTPUT);
10pinMode(9, OUTPUT);
11pinMode(10, OUTPUT);
12pinMode(11, OUTPUT);
13pinMode(12,  OUTPUT);
14pinMode(13, OUTPUT);
15pinMode(A2, OUTPUT);
16pinMode(A3, OUTPUT);
17pinMode(A4,  OUTPUT);
18pinMode(A5, OUTPUT);
19}
20
21void loop() {
22  
23delay(1);
24digitalWrite(12,  HIGH);
25digitalWrite(A2, HIGH);
26digitalWrite(A3, HIGH);
27digitalWrite(A4,  HIGH);
28digitalWrite(A5, LOW);
29digitalWrite(13, HIGH);
30digitalWrite(11,  LOW);
31digitalWrite(10, LOW);
32digitalWrite(9, LOW);
33digitalWrite(8, LOW);
34digitalWrite(7,  LOW);
35digitalWrite(6, LOW);
36digitalWrite(5, HIGH);
37digitalWrite(4, LOW);
38digitalWrite(3,  HIGH);
39digitalWrite(2, HIGH);
40
41delay(1);
42digitalWrite(13, LOW);
43digitalWrite(12,  LOW);
44digitalWrite(A2, LOW);
45digitalWrite(A3, LOW);
46digitalWrite(A4, LOW);
47digitalWrite(10,  HIGH);
48digitalWrite(4, HIGH);
49digitalWrite(3, LOW);
50digitalWrite(11, HIGH);
51digitalWrite(8,  HIGH);
52
53delay(1);
54digitalWrite(A2, HIGH);
55digitalWrite(A3, LOW);
56digitalWrite(A5,  HIGH);
57digitalWrite(7, HIGH);
58digitalWrite(3, LOW);
59digitalWrite(2, LOW);
60digitalWrite(5,  LOW);
61digitalWrite(A4, LOW);
62
63delay(1);
64digitalWrite(A5, LOW);
65digitalWrite(7,  LOW);
66digitalWrite(11, LOW);
67digitalWrite(8, LOW);
68digitalWrite(A3, HIGH);
69digitalWrite(3,  HIGH);
70digitalWrite(12, LOW);
71}

void setup() {
  
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4,  OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8,  OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12,  OUTPUT);
pinMode(13, OUTPUT);
pinMode(A2, OUTPUT);
pinMode(A3, OUTPUT);
pinMode(A4,  OUTPUT);
pinMode(A5, OUTPUT);
}

void loop() {
  
delay(1);
digitalWrite(12,  HIGH);
digitalWrite(A2, HIGH);
digitalWrite(A3, HIGH);
digitalWrite(A4,  HIGH);
digitalWrite(A5, LOW);
digitalWrite(13, HIGH);
digitalWrite(11,  LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
digitalWrite(7,  LOW);
digitalWrite(6, LOW);
digitalWrite(5, HIGH);
digitalWrite(4, LOW);
digitalWrite(3,  HIGH);
digitalWrite(2, HIGH);

delay(1);
digitalWrite(13, LOW);
digitalWrite(12,  LOW);
digitalWrite(A2, LOW);
digitalWrite(A3, LOW);
digitalWrite(A4, LOW);
digitalWrite(10,  HIGH);
digitalWrite(4, HIGH);
digitalWrite(3, LOW);
digitalWrite(11, HIGH);
digitalWrite(8,  HIGH);

delay(1);
digitalWrite(A2, HIGH);
digitalWrite(A3, LOW);
digitalWrite(A5,  HIGH);
digitalWrite(7, HIGH);
digitalWrite(3, LOW);
digitalWrite(2, LOW);
digitalWrite(5,  LOW);
digitalWrite(A4, LOW);

delay(1);
digitalWrite(A5, LOW);
digitalWrite(7,  LOW);
digitalWrite(11, LOW);
digitalWrite(8, LOW);
digitalWrite(A3, HIGH);
digitalWrite(3,  HIGH);
digitalWrite(12, LOW);
}

Downloadable files

LED 8x8 Matrix

In this diagram, the LED 8x8 Matrix has ports 1-8 at the bottom.

LED 8x8 Matrix

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