Praktikum Dot Matrix 8x8

 Unit Yang Digunakan

Contoh List Program Menampilkan angka Dengan Array

// Menampilkan Nama Siswa : ....
// Matrix 8x8 Kecil.

#define ROW_1 11
#define ROW_2 13
#define ROW_3 A0
#define ROW_4 12
#define ROW_5 3
#define ROW_6 A1
#define ROW_7 2
#define ROW_8 A3

#define COL_1 8
#define COL_2 A5
#define COL_3 A4
#define COL_4 10
#define COL_5 A2
#define COL_6 9
#define COL_7 7
#define COL_8 6

const byte rows[] = {
    ROW_1, ROW_2, ROW_3, ROW_4, ROW_5, ROW_6, ROW_7, ROW_8
};

// The display buffer Row By major
// It shows a walking steps (1 = ON, 0 = OFF)
byte ani1[] = {0x00, 0x1c, 0x22, 0x32, 0x2a, 0x26, 0x22, 0x1c};
byte ani2[] = {0x00, 0x08, 0x0c, 0x08, 0x08, 0x08, 0x08, 0x3e};
byte ani3[] = {0x00, 0x1c, 0x22, 0x10, 0x08, 0x04, 0x02, 0x3e};
byte ani4[] = {0x00, 0x1c, 0x22, 0x20, 0x18, 0x20, 0x22, 0x1c};


float timeCount = 0;

void setup() {
    // Open serial port
    Serial.begin(9600);
    
    // Set all used pins to OUTPUT
    // This is very important! If the pins are set to input
    for (byte i = 2; i <= 13; i++)
        pinMode(i, OUTPUT);
    pinMode(A0, OUTPUT);
    pinMode(A1, OUTPUT);
    pinMode(A2, OUTPUT);
    pinMode(A3, OUTPUT);
    pinMode(A4, OUTPUT);
    pinMode(A5, OUTPUT);
}

void loop() {
  // This could be rewritten to not use a delay, which would make it appear brighter
delay(5);
timeCount += 1;
if(timeCount <  20) {
drawScreen(ani1);
} else if (timeCount <  40) {
drawScreen(ani2);
} else if (timeCount <  60) {
drawScreen(ani3);
} else if (timeCount <  80) {
drawScreen(ani4);
} else if (timeCount <  100) {
drawScreen(ani1);
} else if (timeCount <  120) {
drawScreen(ani2);
} else if (timeCount <  140) {
drawScreen(ani3);
} else if (timeCount <  160) {
drawScreen(ani4);
} else {
// back to the start
timeCount = 0;
}
}
 void  drawScreen(byte buffer2[]){
   // Turn on each row in series
    for (byte i = 0; i < 8; i++) {
        setColumns(buffer2[i]); // Set columns for this specific row
        
        digitalWrite(rows[i], HIGH);
        delay(2); // Set this to 50 or 100 if you want to see the multiplexing effect!
        digitalWrite(rows[i], LOW);
    }
}

void setColumns(byte b) {
    digitalWrite(COL_1, (~b >> 0) & 0x01); // Get the 1st bit: 10000000
    digitalWrite(COL_2, (~b >> 1) & 0x01); // Get the 2nd bit: 01000000
    digitalWrite(COL_3, (~b >> 2) & 0x01); // Get the 3rd bit: 00100000
    digitalWrite(COL_4, (~b >> 3) & 0x01); // Get the 4th bit: 00010000
    digitalWrite(COL_5, (~b >> 4) & 0x01); // Get the 5th bit: 00001000
    digitalWrite(COL_6, (~b >> 5) & 0x01); // Get the 6th bit: 00000100
    digitalWrite(COL_7, (~b >> 6) & 0x01); // Get the 7th bit: 00000010
    digitalWrite(COL_8, (~b >> 7) & 0x01); // Get the 8th bit: 00000001
    
    // If the polarity of your matrix is the opposite of mine
    // remove all the '~' above.
}

Silahkan Tuliskan tiap baris Untuk telaah untuk diubah programnya menampilkan No Absen anda.