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Idea About Moving Message Dispaly

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by electronicart, Jul 20, 2007.

  1. electronicart

    electronicart Member

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    Hello Sir
    I want to design a Moving message display
    so i want to know the magic behind it means the login on moving a text using some row and column
    i will be very great full to u
    if there will be some flowchart and etc
    thanking you
  2. Binu

    Binu Administrator

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    Here's the circuit diagram
    [​IMG]
    Connect the connectors to the microcontroller ports
    J.Binu
  3. electronicart

    electronicart Member

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    Thanks a lot for the circuit sir :)
    but i need something different
    like. i want to know the logic behind the moving text on the matrix
    how to move the code in to the ports to represent a character or graphic for example
    if i want to show 'A' by moving
    so how can i convert it and put the data on port and shift by clk
    please teach us by suitable flowchart, so we can understand the magic instead of readymade dish
    thanking you
  4. Binu

    Binu Administrator

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    Here's the Flow chart
    [​IMG]
    1. Make the Display routine as Timer Interrupt
    2. Reset the Shift registers, so that first column will be selected.
    3. Load the column value on the display
    4. Wait for 1ms
    5. Generate one clock, so the next column will be selected
    6. load the next column value

    do it repeatly until you reach the last column
    J.Binu
  5. electronicart

    electronicart Member

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    [|)]still not understand
    but thanks for the idea
    any small program then please share
    thanks a lot
  6. ehico16

    ehico16 New Member

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    please can you help with the 89c51 interface circuits to the display
  7. Binu

    Binu Administrator

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    i cant understand your question. please give more details.

    J.Binu
  8. electronicart

    electronicart Member

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    hello sir
    'please post an example code to display welcome on led matrix
    and explain how can we assign a custom graphic
    thanking you
  9. Binu

    Binu Administrator

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    Better you try with the Algorithm given above, i can help you.

    J.Binu
  10. amanjeetindia

    amanjeetindia New Member

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    dear friend
    i have understood the things u are looking for to make display board.
    suppose message "WELCOME YOU" to be displyed. first we make the circuit. and first character W 's binary code will be retrieved, after getting the binary code of the all characters change them into hex and store in a arrays. then the hex of W will be transferred to the row of the matrix and start moving the columns value one by one. this way entire message will be displayed.

    i think its enough
    aman

    Aman
    Do Not Wait For Destiny
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