Hi!
I'm trying to build a 6-module countdown clock. I want it to display 7x4 numbers (i have already changed them in the library file) . If I want to fit there all these numbers I have to "divide" them. (In the attachment you can see my point.) The only function i see is lc.displayChar(), but it doesn't seem have any option to choose place where i want the letter to start. How can I do it?
Thank You in advance 
I had a quick look at the library you mentioned in the title. I guess it is this: GitHub - shaai/Arduino_LED_matrix_sketch
There is one problem already. The font table has characters defined by 58 matrix (and blank column on the right hand side). Your picture shows a 47 matrix. Also, the library does not appear to support positioning characters at an arbitrary horizontal position.
You may have to define an 8 x 48 array (matrix) and position the characters on that matrix,
then write it out a column at a time to the displays. Alternatively find a more flexible library.
As an alternative that lets you do more (but is a bigger library) you may want to look at the MD_Parola and MD_MAX72xx libraries at MajicDesigns (Marco Colli) · GitHub. There is also more documentation on how to use the libraries at the blog site https://arduinoplusplus.wordpress.com, just search for 'Parola A to Z'.
I managed to do it with the MaxMatrix.h , everything works flawlessly! Thank you for your time
