I saw this module on the internet: http://www.picbasic.co.uk/forum/showthread.php?t=23874
It is a 4 bit 7 segment display with two 74HC595.
I recovered from some PCBs some displays of this type, I also have a common cathode display and a common anode, I also bought some 74hc595. I want to make the PCBs, but first I want to ask your opinion, if the circuits are made correctly, because they are not so easy to make at home.
This is for the common cathode: https://snipboard.io/aKl7fi.jpg.
This is for the common anode: https://snipboard.io/BzdMqn.jpg.
Do you notice any problems?