which is the difference between 4017 and 74HC595 please, I want to make a 16x16 matrix, I do not understand that use both and I could not use the 74HC595 for rows and columns and spending less on buying transistors for 4017.
Well, a 4017 (actually, 74HC4017) is a one-of-10 decade counter/ selector while the 74HC595 is a shift register.
If you wish to drive a matrix, you do not want either of these, you want a MAX7219.
Thanks for the reply
You can buy inexpensive matrix modules with the MAX7219 already included.
These are stackable so that you can neatly construct larger units such as your 16 by 16.
Much more sensible than trying to assemble your own "from scratch".
Thanks for the suggestion, but I try to build my own matrix, which is why the need to know the technical details because both CI are used in the matrix
Well, if you propose to use the 4017 and 74HC595 you will end up wasting a lot of time to achieve a grossly inferior performance.
I make a draft 16x16 matrix where rows and columns are connected to 74HC595 not use the 72XX because in my country there, I could help with some sample code please handle with bluetooth desire
Insufficient information to provide assistance.
Schematic? What is the 72xx in this context?
What does that have to do with bluetooth? What are you trying to make it do? Do you have any code written yet? Post it if so.
My best guess is MAX7219 or MAX7219 
How on earth should we be able to help you with so little information? Is it going to be controlled via Bluetooth?
I can not use that suggests to me that in my country do not sell it and I managed only 74HC595, I have no problems with the connection but with the creation of the code.
thank you, thank you very much for the answers were helpful, only in my country do not sell the MAX7219 or MAX7221.
Antarctica?
State your contry.
There might be posters here from the same country that can point you in the right direction.
Leo..
@denisivar, do not cross-post. Other threads removed.
I live in Bolivia and have tried to find but still did not bring and buy sale via internet the cost is tripled.