If you're interested in playing with the ESP8266, I would really recommend the D1 mini, by Wemos. It's an ESP8266 breakout, with a 5v regulator, a USB programme

If you're interested in playing with the ESP8266, I would really recommend the D1 mini, by Wemos. It's an ESP8266 breakout, with a 5v regulator, a USB programmer, and a micro-USB port built in (in a very small package). They also make 'shields' that will plug directly into the headers, with a variety of functionality (including the sensor used in this build). https://www.wemos.cc/ https://www.wemos.cc/ (I'm not affiliated in any way, just my go-to product for DIY IoT stuff)