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  1. wavelet1208

    News:My Arabic language Led matrix driver board

    Sorry,a long time not update,but my Arabic language Led matrix driver board is going.pls wait a moment. character mode,just need send Arabic char,not dot matrix data.so easy!
  2. wavelet1208

    Chineese led diaplay boards

    1.The 74HC245 used to filter,Signal amplification. 2.Maybe there has two channel rgb signal,so just need 8pcs
  3. wavelet1208

    power supply for led matrix

    How to drive the 210 LED?
  4. wavelet1208

    trade with alibaba website in china

    It's common and cheep
  5. wavelet1208

    How I did own LED Screen - Led Line

    Good job,But why you used so much PCB? I think if you used like this PCB an module,That' better and easy. - - - Updated - - - Good job,But why you used so much PCB? I think if you used like this PCB an module,That' better and easy.
  6. wavelet1208

    trade with alibaba website in china

    What you need is?
  7. wavelet1208

    LED Matrix Display with 4094 Shift Register

    CD4094 same as 74HC595, About display refresh : step1.Choose firt row,and shift first row data to 4094/595,and then lock and enable output,after enable out put must delay some time; step2.Choose No.2 row and just like step1 ....... if finish all rows,return step 1,
  8. wavelet1208

    LED Matrix Display with 4094 Shift Register

    First,Do you know the matrix display how to work?operating principle is very important. - - - Updated - - - First,Do you know the matrix display how to work?operating principle is very important.
  9. wavelet1208

    A electric engineer from China

    Can't understand what you mean
  10. wavelet1208

    Dot Matrix led display not same brightness.

    Here https://www.edaboard.com/threads/234654/ I share a sample of the matrix display,maybe a little help to you
  11. wavelet1208

    Dot Matrix led display not same brightness.

    I think maybe it's firmware problem,can you show your code?
  12. wavelet1208

    [SOLVED] PIC24HJ502, TLC5940, C Code

    Yes,I not fond any nice codes too,thank you share.but if know it's how to work,and see the datasheet,timing,it's easy to drive,right?I think principle is important than code.
  13. wavelet1208

    [SOLVED] PIC24HJ502, TLC5940, C Code

    Good job!Now,i driver one 32x256RGB LED matrix display.but i not use PIC MCU and TLC5940.however,i think you are doing very nice project!if you can drive more area,and add communication,PC message editer software,it's will be perfect!
  14. wavelet1208

    two color led display command board from Tecnovision

    It's a beautiful control board! If you can't find PC software,why not buy new LED matrix control board?I think it's easy to work again.... Good luck!
  15. wavelet1208

    The LED matrix display enthusiasts,Can you show where you want to used?

    Usually,the matrix display is used to show message.Advertisement,signal...Maybe just to learn is possible. But i really want to know where you want to use?Can you talking about it?
  16. wavelet1208

    LED Scrolling Board (I know but please have a look)

    you know more current,maybe the led will get more lights,BUT it's a big trouble to LED life!constant current to 20mA,that's good choise,so that's is why I recommend use constant current driver IC(just like MBI5026),not use 74HC595 too.
  17. wavelet1208

    LED Scrolling Board (I know but please have a look)

    yes,They both decoder. about the intensity of led matrix,first you can see the timing of driver led matrix(this sample is MBI5026 timing),like: if you extension of OE time,then the brightness will higher.
  18. wavelet1208

    LED Scrolling Board (I know but please have a look)

    1.3 – 8 Decoder,Why not use 74HC138? 2.About"No, I don’t know how it receives data and “translate” it in to display." You can receives ASCII char data by USART,and transform it to dot matrix data by Font file,Like this font file...
  19. wavelet1208

    A good sample of Arduino diver 32x16 RGB LED Matrix,And about the module interface

    This sample from ladyada.net.thanks! Link:http://ladyada.net/products/rgbledmatrix/ Arduino very good,but i never use it.ladyada.net share a good sample for us.but here,i not talking more about this.I will talk about the LED matrix display module interface port pin define. This image is...
  20. wavelet1208

    Led Matrix Interfacing with PIC18F4550???

    wavelet_z "at" yahoo.com

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