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    8x8 LED matrix data sheet or conection daigram ?

    hello friends
    I bought an LED matrix 8x8 (3nm)
    But i don't know how the diagrams !!!!
    Please help me the connection (Rows and Columns Connection )

    please see the images
    Click image for larger version. 

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    •   Alt19th December 2011, 05:18

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    Re: 8x8 LED matrix data sheet or conection daigram ?

    Quote Originally Posted by gireeshkumar View Post
    hello friends
    I bought an LED matrix 8x8 (3nm)
    But i don't know how the diagrams !!!!
    Please help me the connection (Rows and Columns Connection )

    please see the images
    Click image for larger version. 

Name:	19122011073.jpg 
Views:	63 
Size:	610.0 KB 
ID:	65882Click image for larger version. 

Name:	19122011077.jpg 
Views:	39 
Size:	768.0 KB 
ID:	65883Click image for larger version. 

Name:	19122011080.jpg 
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ID:	65884
    look at thisWhite Dot Matrix - 8x8 Cathode Row Display LC2088TW1C



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    can you show more information what you need? And now my job is design the led matrix drivre card,8-)



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    Your 8x8 LED matrix has 8x8 pins.... So its simple to connect..... Just follow the matrix rule.
    E.g= to light the 2x4 th LED, supply voltage via 2nd and 4th pins.
    But current should be low as 50mA (approx.)

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

    Your 8x8 LED matrix has 8x8 pins.... So its simple to connect..... Just follow the matrix rule.
    E.g= to light the 2x4 th LED, supply voltage via 2nd and 4th pins.
    But current should be low as 50mA (approx.)



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    i think its circuit connection is different way because of i given the supply (checked with multimeter) but the row and columns is discorded not orderly
    cant find yet ?
    its side has a number as follows VT12088BS


    Please help me thanks



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    In post #2 attached datasheet has common cathode matrix
    here is common anode matrix version......
    http://www.b2bledproducts.com/rimage...YXM-788ASR.pdf

    with code VT12088BS , nothing found....

    You should find out the wiring by measuring.
    Last edited by kak111; 19th December 2011 at 18:17.
    ---> Hike with wise men , then you will be wise <---



    •   Alt19th December 2011, 18:09

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    Re: 8x8 LED matrix data sheet or conection daigram ?

    Checkout this. Had the same problem, done trial and error as one friend suggested. Hope this will help. 8-)

    Click image for larger version. 

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    3 members found this post helpful.

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    Re: 8x8 LED matrix data sheet or conection daigram ?

    yes thanks monsterbrain



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    I have another LED Matrix has 12x12 pin.
    can you tell me how can i find connect this to a pic.



    •   Alt8th May 2012, 23:58

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    Re: 8x8 LED matrix data sheet or conection daigram ?

    if it is White LED, check for 3V drop with ohm meter Anode is the +side.
    The call them either Cathode Row or Anode Row.

    If "Cathode Row" then drive Cathodes with low side drivers and Anode Columns with high side driver.
    If "Anode Row" then drive Anode Rows with high side driver and Cathode Columns with low side driver.

    But in 12x12 or 8x8 what's the difference, just rotate the display and make sure you drive with the right polarity. Peak current = N x average for an Array N size.
    A good design question lists your overall requirements™ The best question deserves a better answer. ™
    ... Tony Stewart EE since 1975



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    with code VT12088BS , nothing found....
    I had the exact same problem, bought 6 of these in India and the datasheet just isn't available. I was able to decode it and understand which pin did what using a multimeter. But I need the dimensions since I'm thinking of designing a PCB now. So, after a lot of searching searching and ... uh ... searching, I finally found a compatible datasheet here. I've checked the pins and it matches perfectly. Just remember to hold the side where it says VT12088BS to the right and count the pins from the left, the same way you would an IC.

    The link to the actual part on adafruit is over here.



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    i just got an 8x8, part# 1588BS-H4, same thing...

    similar product:
    http://www.lc-led.com/products/lc2088tur1a.html

    im trying to achieve this, http://playground.arduino.cc/Main/DirectDriveLEDMatrix
    ive had to work out my matrix, and figured its reverse polarity to the 2 referenced in this thread...

    oh great, the project shows a Diecimila Arduino, which looks almost the same as my UNO v3,
    yet it references pins in the code that arent on the board :/
    that whole article is appearing to be very misleading..
    ive found that im going to have to use the 74HC595 to give me more digital outputs
    back to class for me :/

    maybe not, multiplexing should overcome the lack of pins...
    Last edited by googs; 7th September 2013 at 02:19. Reason: more info



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    just check all pins by providing them voltage and then sold a 8pin connector in the way you want to light leds



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    Re: 8x8 LED matrix data sheet or conection daigram ?

    Your parallel pixel switches must drive 10 to 80mA without change in voltage to maintain constant brightness.
    Click image for larger version. 

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    Your column current switches need to sink 10mA by correct voltage drop over current sense R.

    these row/col may be reversed as long as Anode stays positive. ... i.e. Sink Cathodes with NPN Switch and SOurce Anodes with 10mA current limiting Resistors or drivers with builtin Resistance (Rce or Rds) at tuned supply voltage. Or use shift register with built in current sink from Avago reference design.

    The Red,Amber,Green Leds may vary from batch to batch 2V+/-0.4 and ,Blue 3.6+/-0.4.

    Plan on best low VceSat column switch transistors you can buy from Diodes Incorporated <DK or Mouser>.

    Use diode test on DMM to confirm pixel positions with dim 1mA or so test and color vs voltage in mV , note above tolerance.
    Last edited by SunnySkyguy; 21st September 2013 at 15:19.
    A good design question lists your overall requirements™ The best question deserves a better answer. ™
    ... Tony Stewart EE since 1975



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