I dont have any, so I'm simulating the lighting code for now...

There are 8 DotStars in total, 6 to animate the petals, and two in the base. They are all in a chain, so that makes it pretty easy using Adafuit's Arduino library.

Thank you Ada, best Christmas present ever seeing them hanging on Christmas trees this year. Proper cheered me up, and I had no idea at the time.

And, thanks for the heads-up, @Daren Schwenke , and for the opportunity to work with them and your good self, sir!

To the BatCave!

I have a  working heartbeat, for when the petals are closed, and I'm kicking around some ideas for the open animation, which will be a bit more flashy.

And now with a multicolour display...