jasiyya7520 wrote: ↑
Mon Sep 02, 2019 3:20 pm
what I was trying to make is a different kind of cube that can be worn on him, like a costume.
That helps clear things up. Thanks.
What make or model of LED strip are you using, and what voltage does it require ?
If you don't know exactly; a link to what you bought will help others identify what you have.
If 12V then the simplest way to power things may be a moderately sized 12V Sealed Lead Acid (SLA) battery, with a 12V-to-5V step-down regulator to the Pi or whatever controls it. But multiple batteries should work just as well.
You might consider a 12V SLA and a separate 5V battery pack for the Pi.
As to how much power will be used - I recall a good rule of thumb is that every single-colour LED which is fully on uses 20mA. So if you have a 3x3 top, four 3x5 sides, with two LED units in each square, that's 138 LED units. With red, green or blue, colours lit on each LED unit that would be something like 3A, so you would need a 12V 3Ah battery for it to last an hour - and it would probably be less.
You would need less power if the LED's were not run at full brightness or not all were lit. And the same battery would correspondingly last longer.