I’m powering 16 LEDs with my one arduino. The setup goes through two different 74HC595 in order to power them mostly following this tutorial: https://www.arduino.cc/en/Tutorial/ShiftOut.
All 16 of my LEDs are different brightnesses, but I want them to be the same. What affects this? They all use the same resistors. Is it my soldering job that could be making the difference?