Geeetech

Thanks for your help, I got it to work correctly and count from 0 up to 9999.

I used the 2 - 7-segment display with 74HC595 modules program as my starting point for a 4 - 7-segment display. I used this program because I wanted a timed increment and it will count days so it will increment every 24 hrs. I can't figure out how to modify the 2 digit program to work with 4 digits ...