I am trying to make taillights for my car and I had everything working perfectly, except, the brake lights. When I turn them on, the top 2 rows and bottom 1 row flicker (top 2 more than the bottom one). I am using a 10A external power supply to run the lights. I am getting 5.1V from it. I have a ground shared to the UNO from the power supply, and all of the other functions work fine (no flicker) so I think it’s a coding issue but I can’t figure it out. This is not done, so I know there is code that does nothing in it. Also, if you have any tips for making it work better, feel free to clue me in. I am new to the addressable LEDs.
Vette Tailight.pdf (12.8 KB)
Vette_Tailights.ino (10.7 KB)