Digital signboard using SMS applications

Discussion in 'The Projects Forum' started by kie256, Oct 23, 2011.

  1. kie256

    Thread Starter New Member

    Oct 22, 2011
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    0
    hi guys,
    I have problem to make program for this project, i'm use PIC16F877A and i also use GSM modem as receiver path. One thing how to combine LED dot matrix in this project.what should i do for combine all in one circuit?
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Do you have a schematic?
     
  3. kie256

    Thread Starter New Member

    Oct 22, 2011
    3
    0
    i want to modified from this circuit,but not clear :(
     
  4. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Your´re right, the schematic is very small. but it seems pretty straightforward. Top left is the PIC with voltage regulator etc., bottom left is MAX232 RS232-to-TTL converter which you will replace with your GSM module, and the right side is a multiplexed display with it´s drivers.

    What do you need help with?
     
  5. kie256

    Thread Starter New Member

    Oct 22, 2011
    3
    0
    i don't know the type of drive use at display path...
    here i attach some review pic about project, I get from internet.
    I plan to do same like this..
     
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