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

At this point, we’ve all seen enough ESP8266 “weather stations” to ... this design suffers from the same issue we’ve seen in other compact environmental monitoring solutions; namely ...

The watch is impressively thin and compact for a DIY build, and has a host of useful functions without going overboard. We’ve seen other DIY builds in this space, too – such as this ESP8266 ...