If you already have a ton of smart home devices and you're wondering what to do next, I recommend picking up an ESP8266.

The end result is a USB stack running on the ESP8266 WiFI module. [cnlohr] has been working for about a month on this USB implementation for the ESP, beginning with a logic analyzer, Wireshark ...

There’s a bunch of simple WiFi-enabled outlets on the market today, and all of these blister-pack goodies seem to have something in common – crappy software ... to be an ESP8266 upon decapping.