Help with LEDs Powered from Small Format Battery

daijizai

Newly Enlightened
Joined
Mar 29, 2017
Messages
2
As far as most maker stuff goes, I am a total n00b. I have a hobby project at hand to design a glowing playing card to emulate Gambit from X-Men helping someone pull together a cosplay getup. I know how to make it work at 12v, but I would love to get it to 3.7v for a small LiPo.

I guess my question is: With the LEDs wired in parallel, I don't have sufficient current; in series, I don't have sufficient voltage. I have neopixel rings that can power a dozen leds off the same 3.7v battery. What can I look in on and read up on to figure this circuit out?

Image is the series circuit.

tm77T

http://imgur.com/a/tm77T

Thanks in advance!
 

ssanasisredna

Enlightened
Joined
Oct 19, 2016
Messages
457
Are those white or Red LEDs?

If red you should be able to adjust the resistors to get enough current .
 

daijizai

Newly Enlightened
Joined
Mar 29, 2017
Messages
2
Are those white or Red LEDs?

If red you should be able to adjust the resistors to get enough current .

Red, but the resistors are already fairly minimal. I forget what I put on there at the moment, but I know they were the lowest values that I have. I am thinking that maybe I have them wired up completely wrong? I've seen dozens of LEDs powered on the same voltage. There has to be a smarter way?

I have been jammed at work and some long hours, but I should have some time to tinker in the evenings starting next week. I hope to find the solution soon.

Thanks for the thought though. I'll look into it, but I am thinking there must be more to it.
 
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