Search code examples
microcontrolleravrled

how to print a string in 16*16 Dot Matrix from AVR

I want to output the string "LED GAME" as indicated in picture . But in Dot matrix , there are only 16 + 16 = 32 pins . is there any way to print a string from avr to dotmatrix ?

enter image description here

Solution

  • How can you identify Pin 1 Of Dot matrix ?

    The leftmost pin of dot matrix on the opposite site of the label "2088BH-B" is pin 1 .

    You can get a complete idea from the two following picture . enter image description here

    enter image description here

    Hope this will help you a lot . you can also try the following code which is written for showing 9 in dot matrix ( compiler: micro-C)

    void main() 
{
     DDRB = 0b11111111;
     DDRC = 0b11111111;
     while(1)
     {
           PORTB=0b00000000;  // 1
           PORTC=0b10000000;
            Delay_us(5);

           PORTB=0b00000000;       //2
           PORTC=0b01000000;
            Delay_us(5);

           PORTB=0b00000000;          //3
           PORTC=0b00100000;
            Delay_us(5);

           PORTB=0b00000000;             //4
           PORTC=0b00010000;
            Delay_us(5);

           PORTB=0b10011110;  // 5
           PORTC=0b00001000;
            Delay_us(5);

           PORTB=0b10010010;       //6
           PORTC=0b00000100;
            Delay_us(5);

           PORTB=0b10010010;          //7
           PORTC=0b00000010;
           Delay_us(5);

           PORTB=0b11111110;             //8
           PORTC=0b00000001;
           Delay_us(5);

     }
}