When we first heard about it a few weeks ago, we knew the ESP8266 ... module can do; at less than $5, it will only be a matter of time until sensors are wired in, code written, and a truly ...

There’s also an “ESP8266 IoT SDK”, but from a quick glance at the code, this appears to be an SDK for the SOC on the module, not a simple way to connect the module to a microcontroller.