How do i control multiple LEDs connected to separate batteries with one on/off switch?
I'm trying to power a toy with LEDs they are around 3v and i'm trying to power atleast 4-5 of them with 2xLR44 to each LED. and it needs to be as compact as possible. I was unable to power multiple ones in a series with enough cell batteries and times ticking (for a project). so i've decided to wire the LEDs to 2 LR44 each, is there someway to place something in between each battery and be able to connect it to an on/off switch somehow? or is there a better way? thanks for your time