Could you help me with some advice on what components I need to do this safely?
I want to use WS2812B LED strips with an external power source. I will need them all on simultaneously for one part of the project (on the 24th Dec, it's an advent calendar dolls house). At 2/3 brightness (40mA per LED) I estimate 10V for ~250 LEDs.
Sketch below of what I think I need to do. Questions:
- Does this look right or do I need to use a transistor as well?
- How can I physically put together the 5V wires without using a breadboard? Do I need to solder or can I use some screw joints?
- Do I reallly need the 1000uF capacitor?
- What rating wire do I need to do the 5V 10A part safely?
- Are there any limitations on soldering for 10A current?
- I know I need to also link the WS2812B strips with Arduino ground - is it safe to do that part on a breadboard (i.e. what is the largest current that would flow to Arduino ground rather than the 5V ground?
Context on me / this project - long time coder, revisiting electronics after a 15 year gap from school physics. I have tested the code at low brightness of this setup using a 5V supply with a 700mA rated external power supply successfully. I now want to increase the brightness hence this question. I have not yet learned to solder so prefer to avoid if a safe workaround exists
Thanks in advance!