Author Topic: 7 x 21 dot matrix led display?  (Read 767 times)

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Offline ambi

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7 x 21 dot matrix led display?
« on: June 09, 2015, 08:56:17 am »
Hi genius

i need an help for designing the small 7 x 21 dot matrix smd LED display with message running display for my certain application ..
Can anyone help me out by attaching any simple schematic circuits for my project??

Thanks  :D

Offline codeboy2k

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Re: 7 x 21 dot matrix led display?
« Reply #1 on: June 09, 2015, 09:23:36 am »
If you don't know where to begin with a simple 7x21 matrix of LED's, then you should not be building it.

Here's a 7x21 LED display with programmable messages:

Whatever your application is, if you just need a message display then this will get you one for only $20.00.   
That's much cheaper than a month of design, debug and testing that you might need to do if you are unsure
of how to do this.


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