Winkekatze 🐈
The
Idea came up at
CCCamp 2015. A
Worldwide
Web of
Winkekatzen! What an awesome Idea.
We bought a cheap
Winkekatze of off eBay. Its actually a quite hackable cat, i can recommend it. We made a simple
controller for it and a friend wrote the
Software.
We used an
ESP01, which is usually the cheapest available. But any other should work fine. Actually, any other should be finer, as the ESP01 is rather finicky to program.
We used an LM1117 regulator. Dont even try the smaller footprints, they wont suffice. Better use a
buck converter or an LM317. We had lots of trouble with ESPs due to insufficient power suplies. And no, they don't fail gracefully. They just act up, and you end up debugging endlessly until you realize it was the supply. Trust me on that.