Seven Segment Display Multiplexing

The code

The “Schematic”  haha don’t judge, Note: the pinout of the 595 is wrong, latch and clock are backwards

Here is a Schematic done by a fellow you tuber.  Great work Carlos!!

ARDUINO 7 SEG DISPLAY REV1.1

The 1k ohm resistors can be played with to adjust brightness.  It depends on your display and what the forward current and voltage of the segment’s LEDs are.