Arduino Bunny Light

I built an Arduino nightlight that looks like a bunny.


I was inspired by this blog post on Sparkfun. However, I wanted to do something more complex in terms of lightning. The bunny shape was laser cut from acrylic and a simple circuit board was assembled to host two RGB LEDs that connected, along with a button, to an Arduno Nano board.

There are three modes for this nighlight:

  1. solid color (five colors pre-loaded; those can be rotated through by a short button press) The single button press controls the light mode:
  2. pulsating color (same five colors; those can also be rotated through by a short button press)
  3. crossfading light (uses the same five colors).

The long button press activates one of the sleep mode durations (turning the light off after 15 / 30 / 60 minutes). A short button press after the sleep mode was activated will cancel it.

This GitHub page contains the code and circuit design files.

One thousand origami cranes…

From the Wikipedia article: Thousand Origami Cranes (千羽鶴 Senbazuru) is a group of one thousand origami paper cranes held together by strings. An ancient Japanese legend promises that anyone who folds a thousand origami cranes will be granted a wish by the Gods. Some stories believe you are granted eternal
good luck, instead of just one wish, such as long life or recovery from illness or injury.20160321_182222

It turns out that even if one has no particular skill at origami, if one folds something about 1000 and five times, one gets surprisingly good.

Here is some stats I’ve gathered on the process:

  • The whole project has lasted for 252 days, I have only spent 41 days actually folding.
  • On average, I made about 24 cranes at a time. There have been at least 10 days where I’ve made only 10 cranes and two very productive days where I’ve made 70. Further to this, I made 20 on 16 different occasions, 30 on 4 different occasions, 40 on 6 different occasions and 50 on 1 occasion.
  • The longest streak was 9 days in March and the longest break was for 64 days.

Unfortunately I did not time myself, but I am pretty sure I can fold a crane in under a minute now. I recommend this project for everyone who feels guilty watching Netflix and not doing anything “useful” – now you can pretend you are being productive.

Update June 1, 2016: and here is the finished product…