Matrix 8x8 Led "HI"

Just matrix 8x8 led saying hi

Mar 14, 2020

•

1644 views

•

1 respects

matrix led

display

arduino

Components and supplies

Rotary potentiometer (generic)

LED Dot Matrix Display, Red

Male/Male Jumper Wires

USB-A to B Cable

Arduino UNO

Project description

Code

Arduino Code

arduino

1//This project was made by Mikołaj Trybulski
2//CONNECTING
3//MATRIX  PIN:     ARDUINO PIN:
4 //     1             13
5 //       2             12
6  //      3             11
7 //     4             10
8 //     5             A2
9  //     6             A3
10 //     7             A4
11 //     8             A5
12  //     9             2
13 //     10            3
14 //     11            4
15  //     12            5
16 //     13            6
17 //     14            7
18  //      15           8
19 //      16           9
20void setup() {
21  // put  your setup code here, to run once:
22pinMode(2, OUTPUT);
23pinMode(3, OUTPUT);
24pinMode(4,  OUTPUT);
25pinMode(5, OUTPUT);
26pinMode(6, OUTPUT);
27pinMode(7, OUTPUT);
28pinMode(8,  OUTPUT);
29pinMode(9, OUTPUT);
30pinMode(10, OUTPUT);
31pinMode(11, OUTPUT);
32pinMode(12,  OUTPUT);
33pinMode(13, OUTPUT);
34pinMode(A2, OUTPUT);
35pinMode(A3, OUTPUT);
36pinMode(A4,  OUTPUT);
37pinMode(A5, OUTPUT);
38
39}
40
41void loop() {
42  // put your  main code here, to run repeatedly:
43int Svb = analogRead(A0);
44int Sv = analogRead(A1);
45
46//1
47
48digitalWrite(12,  HIGH);
49digitalWrite(A2, HIGH);
50digitalWrite(A3, HIGH);
51digitalWrite(A4,  HIGH);
52digitalWrite(A5, HIGH);
53digitalWrite(A3, HIGH);
54digitalWrite(11,  LOW);
55digitalWrite(10, HIGH);
56digitalWrite(13, HIGH);
57digitalWrite(9, LOW);
58digitalWrite(8,  LOW);
59digitalWrite(7, LOW);
60digitalWrite(6, HIGH);
61digitalWrite(5, HIGH);
62digitalWrite(4,  LOW);
63digitalWrite(3, LOW);
64digitalWrite(2, HIGH);
65
66if(Sv < 400){
67  delay(100);
68}
69else 
70delay(1);
71
72
73//2
74
75
76digitalWrite(12,  HIGH);
77digitalWrite(A2, HIGH);
78digitalWrite(A3, HIGH);
79digitalWrite(A4,  HIGH);
80digitalWrite(A5, LOW);
81digitalWrite(A3, HIGH);
82digitalWrite(11,  LOW);
83digitalWrite(10, HIGH);
84digitalWrite(13, HIGH);
85digitalWrite(9, LOW);
86digitalWrite(8,  LOW);
87digitalWrite(7, HIGH);
88digitalWrite(6, HIGH);
89digitalWrite(5, HIGH);
90digitalWrite(4,  LOW);
91digitalWrite(3, LOW);
92digitalWrite(2, HIGH);
93
94if(Sv < 400){
95  delay(100);
96}
97else 
98delay(1);
99
100//3
101
102digitalWrite(12, HIGH);
103digitalWrite(A2,  HIGH);
104digitalWrite(A3, HIGH);
105digitalWrite(A4, HIGH);
106digitalWrite(A5,  HIGH);
107digitalWrite(A3, HIGH);
108digitalWrite(11, HIGH);
109digitalWrite(10,  HIGH);
110digitalWrite(13, HIGH);
111digitalWrite(9, LOW);
112digitalWrite(8, LOW);
113digitalWrite(7,  HIGH);
114digitalWrite(6, HIGH);
115digitalWrite(5, LOW);
116digitalWrite(4, LOW);
117digitalWrite(3,  LOW);
118digitalWrite(2, HIGH);
119
120
121if(Sv < 400){
122  delay(100);
123}
124else  
125delay(1);
126
127//4
128
129digitalWrite(12, HIGH);
130digitalWrite(A2, HIGH);
131digitalWrite(A3,  HIGH);
132digitalWrite(A4, HIGH);
133digitalWrite(A5, HIGH);
134digitalWrite(A3,  HIGH);
135digitalWrite(11, LOW);
136digitalWrite(10, HIGH);
137digitalWrite(13,  LOW);
138digitalWrite(9, LOW);
139digitalWrite(8, LOW);
140digitalWrite(7, HIGH);
141digitalWrite(6,  HIGH);
142digitalWrite(5, HIGH);
143digitalWrite(4, LOW);
144digitalWrite(3, LOW);
145digitalWrite(2,  HIGH);
146
147
148if(Sv < 400){
149  delay(100);
150}
151else 
152delay(1);
153
154//5
155
156digitalWrite(12,  HIGH);
157digitalWrite(A2, HIGH);
158digitalWrite(A3, HIGH);
159digitalWrite(A4,  LOW);
160digitalWrite(A5, HIGH);
161digitalWrite(A3, HIGH);
162digitalWrite(11,  LOW);
163digitalWrite(10, HIGH);
164digitalWrite(13, HIGH);
165digitalWrite(9, LOW);
166digitalWrite(8,  LOW);
167digitalWrite(7, HIGH);
168digitalWrite(6, HIGH);
169digitalWrite(5, HIGH);
170digitalWrite(4,  LOW);
171digitalWrite(3, LOW);
172digitalWrite(2, HIGH);
173
174
175if(Sv < 400){
176  delay(100);
177}
178else 
179delay(1);
180
181
182}

//This project was made by Mikołaj Trybulski
//CONNECTING
//MATRIX  PIN:     ARDUINO PIN:
 //     1             13
 //       2             12
  //      3             11
 //     4             10
 //     5             A2
  //     6             A3
 //     7             A4
 //     8             A5
  //     9             2
 //     10            3
 //     11            4
  //     12            5
 //     13            6
 //     14            7
  //      15           8
 //      16           9
void setup() {
  // put  your setup code here, to run once:
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() {
  // put your  main code here, to run repeatedly:
int Svb = analogRead(A0);
int Sv = analogRead(A1);

//1

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

if(Sv < 400){
  delay(100);
}
else 
delay(1);


//2


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

if(Sv < 400){
  delay(100);
}
else 
delay(1);

//3

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


if(Sv < 400){
  delay(100);
}
else  
delay(1);

//4

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


if(Sv < 400){
  delay(100);
}
else 
delay(1);

//5

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


if(Sv < 400){
  delay(100);
}
else 
delay(1);


}

Arduino Code

arduino

1//This project was made by Mikołaj Trybulski
2//CONNECTING
3//MATRIX
4  PIN:     ARDUINO PIN:
5 //     1             13
6 //       2             12
7
8  //      3             11
9 //     4             10
10 //     5             A2
11
12  //     6             A3
13 //     7             A4
14 //     8             A5
15
16  //     9             2
17 //     10            3
18 //     11            4
19
20  //     12            5
21 //     13            6
22 //     14            7
23
24  //      15           8
25 //      16           9
26void setup() {
27  // put
28  your setup code here, to run once:
29pinMode(2, OUTPUT);
30pinMode(3, OUTPUT);
31pinMode(4,
32  OUTPUT);
33pinMode(5, OUTPUT);
34pinMode(6, OUTPUT);
35pinMode(7, OUTPUT);
36pinMode(8,
37  OUTPUT);
38pinMode(9, OUTPUT);
39pinMode(10, OUTPUT);
40pinMode(11, OUTPUT);
41pinMode(12,
42  OUTPUT);
43pinMode(13, OUTPUT);
44pinMode(A2, OUTPUT);
45pinMode(A3, OUTPUT);
46pinMode(A4,
47  OUTPUT);
48pinMode(A5, OUTPUT);
49
50}
51
52void loop() {
53  // put your
54  main code here, to run repeatedly:
55int Svb = analogRead(A0);
56int Sv = analogRead(A1);
57
58//1
59
60digitalWrite(12,
61  HIGH);
62digitalWrite(A2, HIGH);
63digitalWrite(A3, HIGH);
64digitalWrite(A4,
65  HIGH);
66digitalWrite(A5, HIGH);
67digitalWrite(A3, HIGH);
68digitalWrite(11,
69  LOW);
70digitalWrite(10, HIGH);
71digitalWrite(13, HIGH);
72digitalWrite(9, LOW);
73digitalWrite(8,
74  LOW);
75digitalWrite(7, LOW);
76digitalWrite(6, HIGH);
77digitalWrite(5, HIGH);
78digitalWrite(4,
79  LOW);
80digitalWrite(3, LOW);
81digitalWrite(2, HIGH);
82
83if(Sv < 400){
84
85  delay(100);
86}
87else 
88delay(1);
89
90
91//2
92
93
94digitalWrite(12,
95  HIGH);
96digitalWrite(A2, HIGH);
97digitalWrite(A3, HIGH);
98digitalWrite(A4,
99  HIGH);
100digitalWrite(A5, LOW);
101digitalWrite(A3, HIGH);
102digitalWrite(11,
103  LOW);
104digitalWrite(10, HIGH);
105digitalWrite(13, HIGH);
106digitalWrite(9, LOW);
107digitalWrite(8,
108  LOW);
109digitalWrite(7, HIGH);
110digitalWrite(6, HIGH);
111digitalWrite(5, HIGH);
112digitalWrite(4,
113  LOW);
114digitalWrite(3, LOW);
115digitalWrite(2, HIGH);
116
117if(Sv < 400){
118
119  delay(100);
120}
121else 
122delay(1);
123
124//3
125
126digitalWrite(12, HIGH);
127digitalWrite(A2,
128  HIGH);
129digitalWrite(A3, HIGH);
130digitalWrite(A4, HIGH);
131digitalWrite(A5,
132  HIGH);
133digitalWrite(A3, HIGH);
134digitalWrite(11, HIGH);
135digitalWrite(10,
136  HIGH);
137digitalWrite(13, HIGH);
138digitalWrite(9, LOW);
139digitalWrite(8, LOW);
140digitalWrite(7,
141  HIGH);
142digitalWrite(6, HIGH);
143digitalWrite(5, LOW);
144digitalWrite(4, LOW);
145digitalWrite(3,
146  LOW);
147digitalWrite(2, HIGH);
148
149
150if(Sv < 400){
151  delay(100);
152}
153else
154  
155delay(1);
156
157//4
158
159digitalWrite(12, HIGH);
160digitalWrite(A2, HIGH);
161digitalWrite(A3,
162  HIGH);
163digitalWrite(A4, HIGH);
164digitalWrite(A5, HIGH);
165digitalWrite(A3,
166  HIGH);
167digitalWrite(11, LOW);
168digitalWrite(10, HIGH);
169digitalWrite(13,
170  LOW);
171digitalWrite(9, LOW);
172digitalWrite(8, LOW);
173digitalWrite(7, HIGH);
174digitalWrite(6,
175  HIGH);
176digitalWrite(5, HIGH);
177digitalWrite(4, LOW);
178digitalWrite(3, LOW);
179digitalWrite(2,
180  HIGH);
181
182
183if(Sv < 400){
184  delay(100);
185}
186else 
187delay(1);
188
189//5
190
191digitalWrite(12,
192  HIGH);
193digitalWrite(A2, HIGH);
194digitalWrite(A3, HIGH);
195digitalWrite(A4,
196  LOW);
197digitalWrite(A5, HIGH);
198digitalWrite(A3, HIGH);
199digitalWrite(11,
200  LOW);
201digitalWrite(10, HIGH);
202digitalWrite(13, HIGH);
203digitalWrite(9, LOW);
204digitalWrite(8,
205  LOW);
206digitalWrite(7, HIGH);
207digitalWrite(6, HIGH);
208digitalWrite(5, HIGH);
209digitalWrite(4,
210  LOW);
211digitalWrite(3, LOW);
212digitalWrite(2, HIGH);
213
214
215if(Sv < 400){
216
217  delay(100);
218}
219else 
220delay(1);
221
222
223}

//This project was made by Mikołaj Trybulski
//CONNECTING
//MATRIX
  PIN:     ARDUINO PIN:
 //     1             13
 //       2             12

  //      3             11
 //     4             10
 //     5             A2

  //     6             A3
 //     7             A4
 //     8             A5

  //     9             2
 //     10            3
 //     11            4

  //     12            5
 //     13            6
 //     14            7

  //      15           8
 //      16           9
void setup() {
  // put
  your setup code here, to run once:
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() {
  // put your
  main code here, to run repeatedly:
int Svb = analogRead(A0);
int Sv = analogRead(A1);

//1

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

if(Sv < 400){

  delay(100);
}
else 
delay(1);


//2


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

if(Sv < 400){

  delay(100);
}
else 
delay(1);

//3

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


if(Sv < 400){
  delay(100);
}
else
  
delay(1);

//4

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


if(Sv < 400){
  delay(100);
}
else 
delay(1);

//5

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


if(Sv < 400){

  delay(100);
}
else 
delay(1);


}

Downloadable files

schematic

picture

schematic

Comments

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Anonymous user

5 years ago

If I read that circuit and code correctly, you are driving the Arduino pins way to hard. For starters, there are no currently limiting resistors, so an LED (or set of LEDs) that are turned on will drive the Arduino pins to their maximum available current. The LEDs will not actually go to 5 volts that the Arduino attempts to set, so the voltage on the Arduino pins will be pull down (and up from ground) to the provide the maximum current the microcontroller pins are capable of. Second, the LED maxtrix has 8 LEDs (everything in one column) tied together to a common row line. Which means that the power (or sink) for everything turned on at once in a single column has be provided by the Arduino pin connected to that row. So if the whole column is turned on at once, 8 LEDS worth of power is flowing through a single pin. Even with current limiting resistors, that would be too much. This needs some form of row driver, as well as current limiting resistors on each column.

Mikiklopsiki

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5 Projects

Intro

Components and supplies

Project description

Code

Downloadable files