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From the artist's comment:

So, heres my first ever princess, Luna, and electronic integrated plush, (however, far from my first electrical design and fabrication). Sound in plushies is commonplace, so little over a year ago, I thought What could I do that hasnt been done? Sure, LEDs have been done before too, and probably EL-wire, but where would it look good? Luna was the answer.

I tried to look up twinkling LEDs or a per-written program that actually twinkled LEDs fairly randomly like stars, but I found nothing and programmed them myself instead. Okay, so what else could I do more than mere LEDs? Eyes, and glow-in-the-dark thread wasnt going to cut it. Ive never seen backlit embroidery before, so that was going to be my next development goal! :D If I had to guess, developing and making this Luna probably took…

Time: About 200 hours.

Run-time test results using 3 AAA alkaline batteries (LEDs in highest duty cycle, mode 4):
* 5 hrs, 22 min with LEDs + EL wire
* 9 hrs, 44 min with LEDs
* 3 hrs, 10 min with LEDs (fairly dim at this point, but still visible in the dark)
Total run-time: 18 hrs, 16 min

NOTE: Id recommend rechargeable NiMH batteries for possibly better performance, but its not a must. I probably couldve ran the EL wire longer, but was having an issue that has since been resolved. Apparently the manufactures EL wire termination on one wire in the mane was shorting, thus turning it off and sometimes dimming it apart from the others. This also happened on one of my own terminations on one of the tail wires, but that was resolved during early QA testing.


Electrical Specs:

* 116 3mm bright white LEDs (42 are in her eyes)
* Redundant buttons
* 4 modes for mane/tail LEDs and eyes, 6 modes for EL wire (3 speeds, 2 directions)
* 3 AAA batteries
* 1 amp fuse (just because I can)
* 2 ATmega328P processors
* 1 ATtiny84 processor
* 26 AWG wire connecting LEDs
* 24 AWG wire connecting buttons, EL-wire, etc.
* 18 AWG wire from batteries to main circuit
* About 302 point-to-point hand soldered connections, not to mention the circuit boards themselves, (Ive been soldering since about 10 years old )


Plush Specs:

* Minky fabric for body, inner mane/tail, and accessories.
* Organza for outer mane/tail
* Machine embroidered eyes and cutiemarks
* Premium Polyester Fiberfill stuffing
* 18" high from hooves to top of head, 22 3/4" with horn


Luna is for Sale:

If youre really interested, please feel free to make an offer! Serious offers only, (i.e. 4 digits).

See more plushies here:

Upvotes at import: 77 | Stars at import: 57
Posted previously at: 2014-08-29T23:57:29 | Posted previously by: PlotHole