Basic LED art question re: batteries!! Answered
Uhh, hi everyone.
I have a super basic question, and I'm going to appeal for help because I'm running low on time for this project.
I have a signpost I want to light up with about 100 3volt LEDs. What kind of power source should I be looking at? Would 4 AA batteries suffice?
I've seen online calculators for determining resistors, but not for an ideal power source. Do I just wire up as many batteries as I want and get the proper resistors? I'd like this thing to light for at least eight hours on a full charge, so I can swap batteries daily.
Thank you in advance! I'm dumb!