+ Post New Thread
Page 1 of 2 1 2 LastLast
Results 1 to 20 of 23
  1. #1
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    hi everyone.. pls. we need your help in our project... 7x30 or 8x24 led dot matrix.. we need a schematic diagram.. a source code or assembly.... pls. thanks for the replies and help!!!

    ---------- Post added at 20:09 ---------- Previous post was at 20:08 ----------

    any type of display... btw it is a multi color led...
    thanks a lot! we need your help please!

  2. #2
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    How much you gonna pay for that job? ;) Also you have to be more specific to describe project.



    •   Alt24th February 2011, 14:14

      advertising

        
       

  3. #3
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    haiz.... how much is your bet? we need this project... please!


    1 members found this post helpful.

  4. #4
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    I am not after money, a bit busy at moment. If you want to get freelancer here, you have to be even more specific:
    1)deadlines
    2)payment system
    3)description of the project


    1 members found this post helpful.

  5. #5
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    the deadline of our project is on march 11.. we are the one to build that project and buy the materials needed... our project is to make a 7x30 RGB Led Dot Matrix using pic16f84a microprocessor... that there is a scrolling text " IF IT'S EASY, Then IT'S NOT ECE" we are begging anyone to pls. help us any ideas on our project... like the schematic diagram, the parts/components, and also the assembly program, what software are we going to use to burn that program... thanks! pls help us for our project!


    1 members found this post helpful.

  6. #6
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    i think its difficult to explain the full working, just if u found any problem while doing the project, then many one could help u....
    i will just give an introduction if u r new to dotmatrix displays...
    microcontroller is connected to row(7 rows),then connect a ring counter to 30 column (mod 30)
    clock and reset of counter is controlled by microchip....

    just read this sample c program i had done for our techfest (just day before yesterday)
    then ask if u got any doubt....display which i made is 38x7 . just check the program and ask ur doubts...it will be better in ur case, i think so...



    ////////////////////////////////////////
    //LED DOTMATRIX MESSAGE DISPLAY //
    // vinodstanur@gmail.com //
    ////////////////////////////////////////
    //used hightech c compiler(not free)////
    ////////////////////////////////////////
    #include
    #define _XTAL_FREQ 16e6 // 4MHz
    __CONFIG(0x3F3A);

    int a1,b1,c1,d1,e1,f1,g1,h1,i1,j1,k1,l1,m1,n1,o1,p1,q1 ,r1,s1,t1,u1,v1,w1,x1,y1,z1,z2,z3,z4,z5,z6,z7,z8,z 9,z10,z11,z12,z13;


    void begin()
    {
    (a1=0);(b1=0);(c1=0);(d1=0);(e1=0);(f1=0);(g1=0);( h1=0);(i1=0);(j1=0);
    (k1=0);(l1=0);(m1=0);(n1=0);(o1=0);(p1=0);(q1=0);( r1=0);(s1=0);(t1=0);
    (u1=0);(v1=0);(w1=0);(x1=0);(y1=0);(z1=0);(z2=0);( z3=0);(z4=0);(z5=0);
    (z6=0);(z7=0);(z8=0);(z9=0);(z10=0);(z11=0);(z12=0 );(z13=0);

    }


    void delay(unsigned int k){for(int i=0;i<=k;i++);}
    void clock(){delay(50);PORTB=0;RD2=1;RD2=0;delay(10);}
    void reset(){delay(50);PORTB=0;RD3=1;RD3=0;delay(10);}
    void scroll(int a,b,c,d,e)
    {
    (a=~a);(b=~b);(c=~c);(d=~d);(e=~e);
    int t;(t=0);


    loop1:(a1=a);
    for(int i=0;i<=10;i++)
    {
    PORTB=a1;clock();
    PORTB=b1;clock();
    PORTB=c1;clock();
    PORTB=d1;clock();
    PORTB=e1;clock();
    PORTB=f1;clock();
    PORTB=g1;clock();
    PORTB=h1;clock();
    PORTB=i1;clock();
    PORTB=j1;clock();
    PORTB=k1;clock();
    PORTB=l1;clock();
    PORTB=m1;clock();
    PORTB=n1;clock();
    PORTB=o1;clock();
    PORTB=p1;clock();
    PORTB=q1;clock();
    PORTB=r1;clock();
    PORTB=s1;clock();
    PORTB=t1;clock();
    PORTB=u1;clock();
    PORTB=v1;clock();
    PORTB=w1;clock();
    PORTB=x1;clock();
    PORTB=y1;clock();
    PORTB=z1;clock();
    PORTB=z2;clock();
    PORTB=z3;clock();
    PORTB=z4;clock();
    PORTB=z5;clock();
    PORTB=z6;clock();
    PORTB=z7;clock();
    PORTB=z8;clock();
    PORTB=z9;clock();
    PORTB=z10;clock();
    PORTB=z11;clock();
    PORTB=z12;clock();
    PORTB=z13;reset();
    }
    (z13=z12);
    (z12=z11);
    (z11=z10);
    (z10=z9);
    (z9=z8);
    (z8=z7);
    (z7=z6);
    (z6=z5);
    (z5=z4);
    (z4=z3);
    (z3=z2);
    (z2=z1);
    (z1=y1);
    (y1=x1);
    (x1=w1);
    (w1=v1);
    (v1=u1);
    (u1=t1);
    (t1=s1);
    (s1=r1);
    (r1=q1);
    (q1=p1);
    (p1=o1);
    (o1=n1);
    (n1=m1);
    (m1=l1);
    (l1=k1);
    (k1=j1);
    (j1=i1);
    (i1=h1);
    (h1=g1);
    (g1=f1);
    (f1=e1);
    (e1=d1);
    (d1=c1);
    (c1=b1);
    (b1=a1);

    (a=b);
    (b=c);
    (c=d);
    (d=e);
    (t=t+1);
    if(t==5){(a=0);}
    if(t==6){goto exit;}
    goto loop1;
    exit:;
    }
    //////FONT DATA BEGIN////////////////////////////////////////////////
    void font(unsigned char c)///////////ASCII/////////////////////
    {
    if(c==97){scroll(0xF3, 0xAD, 0xAD, 0xAB, 0xC5);} //a
    if(c==98){scroll(0x1, 0xED, 0xED, 0xED, 0xF3);}
    if(c==99){scroll(0xC3, 0xBD, 0xBD, 0xBD, 0xDB);}
    if(c==100){scroll(0xF3, 0xED, 0xED, 0xED, 0x1);}
    if(c==101){scroll(0xC3, 0xAD, 0xAD, 0xAD, 0xCB);}
    if(c==102){scroll(0xEF, 0xEF, 0x1, 0x6F, 0xAF);}
    if(c==103){scroll(0xCF, 0xB5, 0xB5, 0xAD, 0xC3);}
    if(c==104){scroll( 0x1, 0xEF, 0xDF, 0xDF, 0xE1);}
    if(c==105){scroll(0xFF, 0xFF, 0xA1, 0xFF, 0xFF);}
    if(c==106){scroll(0xFB, 0xFD, 0xFD, 0xA3, 0xFF);}
    if(c==107){scroll(0x1, 0xF7, 0xE7, 0xDB, 0xFD);}
    if(c==108){scroll(0xFF, 0xFF, 0x1, 0xFF, 0xFF);}
    if(c==109){scroll(0xC1, 0xBF, 0xC1, 0xBF, 0xC1);}
    if(c==110){scroll(0x81, 0xDF, 0xBF, 0xBF, 0xC1);}
    if(c==111){scroll(0xC3, 0xBD, 0xBD, 0xBD, 0xC3);}
    if(c==112){scroll(0x81, 0xD7, 0xB7, 0xB7, 0xCF);}
    if(c==113){scroll(0xCF, 0xB7, 0xB7, 0xB7, 0xC1);}
    if(c==114){scroll(0x81, 0xEF, 0xDF, 0xDF, 0xDF);}
    if(c==115){scroll(0xDB, 0xAD, 0xAD, 0xAD, 0xB3);}
    if(c==116){scroll(0xDF, 0xDF, 0x3, 0xDD, 0xDB);}
    if(c==117){scroll(0x83, 0xFD, 0xFD, 0xFB, 0x81);}
    if(c==118){scroll(0x87, 0xFB, 0xFD, 0xFB, 0x87);}
    if(c==119){scroll(0x83, 0xFD, 0xF3, 0xFD, 0x83);}
    if(c==120){scroll(0xB9, 0xD7, 0xEF, 0xD7, 0xB9);}
    if(c==121){scroll(0x9B, 0xED, 0xED, 0xED, 0x83);}
    if(c==122){scroll(0xDD, 0xD9, 0xD5, 0xCD, 0xDD);} //z
    if(c==65){scroll(0xC1, 0xB7, 0x77, 0xB7, 0xC1);} //letter A
    if(c==66){scroll(0x01, 0x6D, 0x6D, 0x6D, 0x93);}
    if(c==67){scroll(0x83, 0x7D, 0x7D, 0x7D, 0xBB);}
    if(c==68){scroll(0x01, 0x7D, 0x7D, 0xBB, 0xC7);}
    if(c==69){scroll(0x01, 0x6D, 0x6D, 0x6D, 0x7D);}
    if(c==70){scroll(0x01, 0x6F, 0x6F, 0x6F, 0x7F);}
    if(c==71){scroll(0x83, 0x7D, 0x65, 0x6D, 0xA3);}
    if(c==72){scroll(0x01, 0xEF, 0xEF, 0xEF, 0x01);}
    if(c==73){scroll(0x7D, 0x7D, 0x1, 0x7D, 0x7D);}
    if(c==74){scroll(0xF3, 0x7D, 0x7D, 0x03, 0x7F);}
    if(c==75){scroll(0x01, 0xEF, 0xD7, 0xBB, 0x7D);}
    if(c==76){scroll(0x01, 0xFD, 0xFD, 0xFD, 0xFD);}
    if(c==77){scroll(0x01, 0xBF, 0xDF, 0xBF, 0x01);}
    if(c==78){scroll(0x01, 0xBF, 0xDF, 0xEF, 0x01);}
    if(c==79){scroll(0x83, 0x7D, 0x7D, 0x7D, 0x83);}
    if(c==80){scroll(0x01, 0x6F, 0x6F, 0x6F, 0x9F);}
    if(c==81){scroll(0x83, 0x7D, 0x75, 0x79, 0x81);}
    if(c==82){scroll(0x01, 0x6F, 0x6F, 0x6F, 0x91);}
    if(c==83){scroll(0x9B, 0x6D, 0x6D, 0x6D, 0xB3);}
    if(c==84){scroll(0x7F, 0x7F, 0x01, 0x7F, 0x7F);}
    if(c==85){scroll(0x03, 0xFD, 0xFD, 0xFD, 0x03);}
    if(c==86){scroll(0x07, 0xFB, 0xFD, 0xFB, 0x07);}
    if(c==87){scroll(0x01, 0xFB, 0xF7, 0xFB, 0x01);}
    if(c==88){scroll(0x39, 0xD7, 0xEF, 0xD7, 0x39);}
    if(c==89){scroll(0x3F, 0xDF, 0xE1, 0xDF, 0x3F);}
    if(c==90){scroll(0x79, 0x75, 0x6D, 0x5D, 0x3D);} //letter Z
    if(c==48){scroll(0x83, 0x7D, 0x7D, 0x7D, 0x83);} //NUM 0
    if(c==49){scroll(0xDD, 0xBD, 0x1, 0xFD, 0xFD);}
    if(c==50){scroll(0xBD, 0x79, 0x75, 0x6D, 0x9D);}
    if(c==51){scroll(0x7B, 0x7D, 0x5D, 0x4D, 0x33);}
    if(c==52){scroll(0xCF, 0xAF, 0x6F, 0xEF, 0x1);}
    if(c==53){scroll(0xB, 0x5D, 0x5D, 0x5D, 0x63);}
    if(c==54){scroll(0x83, 0x6D, 0x6D, 0x6D, 0xB3);}
    if(c==55){scroll(0x79, 0x77, 0x6F, 0x5F, 0x3F);}
    if(c==56){scroll(0x93, 0x6D, 0x6D, 0x6D, 0x93);}
    if(c==57){scroll(0x9B, 0x6D, 0x6D, 0x6D, 0x83);} //NUM 9
    if(c==32){scroll(0xFF, 0xFF, 0xFF, 0xFF, 0xFF);} //space
    if(c==46){scroll(0xFF, 0xF9, 0xF9, 0xFF, 0xFF);} //.
    if(c==58){scroll(0xFF, 0x99, 0x99, 0xFF, 0xFF);} //:
    if(c==47){scroll(0xFB, 0xF7, 0xEF, 0xDF, 0xBF);} // /
    if(c==92){scroll(0xBF, 0xDF, 0xEF, 0xF7, 0xFB);} // \
    if(c==35){scroll(0xD7, 0x1, 0xD7, 0x1, 0xD7);} // #
    if(c==40){scroll(0xC7, 0xBB, 0x7D, 0x7D, 0xFF);} // (
    if(c==41){scroll(0xFF, 0x7D, 0x7D, 0xBB, 0xC7);} // )
    if(c==95){scroll(0xFD, 0xFD, 0xFD, 0xFD, 0xFD);} // _
    if(c==64){scroll(0x83, 0x6D, 0x55, 0x6D, 0x8B);} // @
    if(c==38){scroll(0xC9, 0xB6, 0xCA, 0xFD, 0xFA);} // &
    if(c==45){scroll(0xEF, 0xEF, 0xEF, 0xEF, 0xEF);} // -
    if(c==36){scroll(0xDF, 0xAB, 0x1, 0xAB, 0xF7);} // $
    if(c==43){scroll(0xEF, 0xEF, 0x83, 0xEF, 0xEF);} // +
    if(c==37){scroll(0x3B, 0x37, 0xEF, 0xD9, 0xB9);} // %
    if(c==94){scroll(0xEF, 0xDF, 0xBF, 0xDF, 0xEF);} //^
    if(c==63){scroll(0xBF, 0x7F, 0x65, 0x5F, 0x9F);} // ?
    if(c==59){scroll(0xFF, 0x92, 0x91, 0xFF, 0xFF);} // ;
    if(c==61){scroll(0xEB, 0xEB, 0xEB, 0xEB, 0xEB);} // =
    if(c==60){scroll(0xEF, 0xD7, 0xBB, 0x7D, 0xFF);} // <
    if(c==62){scroll(0xFF, 0x7D, 0xBB, 0xD7, 0xEF);} // >
    if(c==44){scroll(0xFF, 0xF5, 0xF3, 0xFF, 0xFF);} // ,
    if(c==91){scroll(0xFF, 0x1, 0x7D, 0x7D, 0xFF);} // [
    if(c==93){scroll(0xFF, 0x7D, 0x7D, 0x1, 0xFF);} // ]
    if(c==126){scroll(0xEF, 0xDF, 0xEF, 0xF7, 0xEF);} // ~
    if(c==33){scroll(0xFF, 0xFF, 0x5, 0xFF, 0xFF);} // !
    if(c==42){scroll(0xAB, 0xC7, 0x1, 0xC7, 0xAB);} // *
    //////FONT DATA END////////////////////////////////////////////////



    }
    int f;s
    void typehere(const char *s)
    {
    while(*s)
    font(*s++);
    }

    void main()
    {
    __delay_ms(100);
    __delay_ms(200);
    __delay_ms(100);
    TRISB=0;
    TRISD=0b01110011;
    PORTD=0;
    RD3=1;
    RD3=0;
    begin();
    delay(10);
    begin();

    while(1)
    {

    typehere("-*-*-*-WELCOME TO GHATECH 2011-*-*the tech feast of Palghat-*-");

    typehere(" GOVERNMENT ENGINEERING COLLEGE SREEKRISHNAPURAM, PALAKKAD ");

    typehere(" ...testing display font..... abcdefghijklmnopqrstuvwxyz....ABCDEFGHIJKLMNOPQRST UVWXYZ....0123456789....!@#$%^&*()_+-=;:?/>.<,~+\..... ..... ..... ..... .....");



    }
    }


    ---------- Post added at 14:17 ---------- Previous post was at 14:13 ----------

    my 'c' knowledge is limited , so that will be very much reflected in the above program(never mind), i dont mean u should use the program, its just for getting some ideas....


    1 members found this post helpful.

  7. #7
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    do you have an assembly program for this... also the schematic diagram? can i use this c program for pic16f84 a microprocessor? thanks vinodstanur... its a big help....



  8. #8
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    Sorry i am not much familiar with asm ...i used to write program in C only....It will be too difficult to understand asm if u r new to microcontroller....better go for C.

    U cannot use the same program for 84a. While compiling it shows
    "Error [1250] C:\Users\laptop\Documents\c files\SCROLLING ADVANCED.C; 122. could not find space (2 bytes) for variable _v1

    "

    clock = RD2
    RESET=RD3
    row data = PORTB bits(7 rows)...use npn transistor in between pic o/p and led row(led negatives of a row are connected together(38 led negatives in each row in my case...
    led column + is connected to ring counter from left to right (bit0,bit1,.....bit38) from left to right.....

    i could not make a schematic now because now i am at college and little bit busy too....i will try to make it and upload it later ....
    so just try to grab the idea how it works...then u can easily write programs according to ur logic....
    bye...


    1 members found this post helpful.

    •   Alt25th February 2011, 16:46

      advertising

        
       

  9. #9
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    thank you so much! vinodstanur...



  10. #10
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    It will be too difficult to understand asm if u r new to microcontroller....better go for C.
    EPIC FAIL
    OMG, next to light on a bunch of LEDs you will need .NET and FRAMEWORK and please do not forget about copyrights


    1 members found this post helpful.

    •   Alt26th February 2011, 11:37

      advertising

        
       

  11. #11
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    in above program, i used "int a,b,c,.....z13
    but actually i need 8 bits only.....so its better to use "short int a,b,c,....z3.....

    ---------- Post added at 19:34 ---------- Previous post was at 19:31 ----------

    Quote Originally Posted by Takeshi-san View Post
    EPIC FAIL
    OMG, next to light on a bunch of LEDs you will need .NET and FRAMEWORK and please do not forget about copyrights
    ????????????



  12. #12
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    IMO, if you are new to MPU, asm is much much better, because it will help to understand, how MPU working.
    PIC16F84 is classic one for ASM
    2jabern
    IF IT'S EASY, Then IT'S NOT ECE
    31 characters, if you will use 5*7 bitmap font, you will need to scroll 31*5 bytes of data(and don't forget spacing between symbols). just make a "brute code" without fontset. Or, if you want to play with font - one hint - I,F,T,',S,E,A,Y,h,e,n,N,O,C - this is your font. Oh, sorry, i forgot "," ;)



  13. #13
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    yes to make spacing between letters i used

    (t=t+1);
    if(t==5){(a=0);}
    if(t==6){goto exit;}
    goto loop1;
    exit:;

    it creates a space in between letters in the display...

    ---------- Post added at 17:33 ---------- Previous post was at 17:21 ----------

    And if it is to diaplay only "IF IT'S EASY, Then IT'S NOT ECE" then no need to create the full ascii font table...just use only the caps letters u requires...
    Actually i used the full font set just because i want to display everything typed in my pc ...RS232 interfacing to PIC16F877A.

    ---------- Post added at 18:32 ---------- Previous post was at 17:33 ----------

    here is the diagram which i had drawn in paint.



  14. #14
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    vinod.. please help! can you give me the c program of our project that display... USLS ENEC5C: "IF IT'S EASY, Then IT'S NOT ECE".. pls pls... and what component 470E is? what is the specific pins of pic16f877A on that schematic diagram.... thanks a lot!



  15. #15
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    470E means 470 ohms. Dont use transparent LEDs. Buy only that red coloured or yellow coloured transluscent LED. That transparent LED will make much trouble to you...its reverse breakdown voltage is very low...this means when you connect it in dot matrix display then it requires diodes in series with each column... And also, you should look straight to that led then only you could see its glowing..but it is not so good to your eyes...so better use that red or yellow coloured led.
    ......
    i used port b (8 bit) for data and RD2 and RD3 (port d bits 2 and 3) pins as clock and reset .......
    Friend atleast try to make it...And you can ask if any doubt in program..Now i am at college..And i am replying you through my mobile only..I think you are making multicoloured LED , IS IT? but my program is only for single coloured led... Just read the program and if you cant understand then just ask ...if you are using only 30 column then just edit the program ...just delete the extra variables. For my display its 38 led column. So i used variables upto z13.
    What are you doing? Student?
    Last edited by vinodstanur; 3rd March 2011 at 16:24.



  16. #16
    Newbie level 6
    Points: 389, Level: 4

    Join Date
    Feb 2011
    Posts
    13
    Helped
    2 / 2
    Points
    389
    Level
    4

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    yes im a student... an ECE student.. but we are not focus on Programming that's why i don't have any idea about programming... thanks!



  17. #17
    Advanced Member level 3
    Points: 5,165, Level: 17
    Achievements:
    Created Blog entry 7 years registered
    vinodstanur's Avatar
    Join Date
    Oct 2009
    Location
    Kerala (INDIA)
    Posts
    748
    Helped
    117 / 117
    Points
    5,165
    Level
    17
    Blog Entries
    3

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    am also a student.....more over its my hobby....



    •   Alt3rd March 2011, 19:25

      advertising

        
       

  18. #18
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    +1 for semi-transparent LED's



  19. #19
    Full Member level 3
    Points: 2,032, Level: 10

    Join Date
    May 2009
    Location
    Serbia
    Posts
    178
    Helped
    20 / 20
    Points
    2,032
    Level
    10

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    Vinod, your code looks woefully inefficient using entirely too much memory resources of the PIC. :)

    You might want to try and optimize the code by thinking "how can I do this with 5 lines of code instead of 50" :D
    Need help with PIC project or school assignment? Feel free to message me....
    :)



  20. #20
    Full Member level 1
    Points: 824, Level: 6

    Join Date
    Jan 2011
    Location
    Japan
    Posts
    100
    Helped
    23 / 23
    Points
    824
    Level
    6

    Re: Need help! for microprocessor project.. 7x30 or 8x24 led dot matrix

    2 jumper2high, man, you made my day *LOL*



--[[ ]]--