To start I appreciate any help you can offer me here. To make a long story short. I decided to give myself a year to make an amazing costume for Halloween next year, it will hopefully include LEDs. The main piece being a cloak that I want to have an LED matrix on that will flash animations. My questions are then:
What is a realistic amount if LEDs I can put in a matrix, and still power it with batteries? (Doing some quick math I've come up with 35 columms x 60 rows of LEDs which would give me 2100 individual LEDs, and I don't have plans to ever have them all on at once.)
Assuming its realistic to use so many LEDs, what's my best option for type of rgb individually addressable LED? (I ordered some ws2812b LEDs to build a small matrix and figure out some of the coding)
Would it be better to wire it as one long strip (series?) or would it be best to do the columns and rows (parallel?)?
I've been reading up on hex values to build an array of values along the rows so each led knows how and if to light up. With that said, is it possible to set color and brightness with a single hex value or does brightness have to be handled seperately?
I'm entirely new to electronics, coding, LEDs, etc so it'll be a learning process but I've spent the last few months working towards my vision. Hopeful that its feasible and thankful for any help.