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When the ESP8266 successor, the ESP32 comes out you'll be set: https://www.sparkfun.com/news/2017

For now, you can always buy your own bluetooth LE modules and attach them to a small microcontroller, for buttons, you could make your own wall buttons with nice enclosures or go the ridiculous route: https://www.adafruit.com/products/1185

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I made a WiFi button for pretty much the same purpose:

https://www.stavros.io/posts/emergency-food-button/

A bit latent, but doesn't require a second press.

That's brilliant! I'd never have thought of designing my own hardware. Kudos

Me neither, but I gave it a shot and it turns out it's super super fun (it's now one of my favorite hobbies, I'm redesigning this right now: https://github.com/skorokithakis/esplights).

I definitely recommend it, KiCad is great, the people at #kicad are great, and the people at https://gitter.im/esp8266/Arduino have taught me most the little I know now. I can't urge you enough to try it.

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