WeMos D1 with ESP8266 Running the same Load Avg sketch:
Two iPhones running the same Blynk app:
This is awesome really. I think I will use some of the sonar modules I have to create a home surveillance Blynk app when I am bored. This app of course will let me know when anyone is moving around in my home when I'm not there
LOL . Normally I am not really into home automation and surveillance apps (been there and done that a decade, maybe two, ago), but this ESP8266 is really amazing combined with the Arduino IDE for programming. They are so cheap, the sky is the limit!
A downside of this, of course, is the fact all of this kind of this very cheap, robust "IoT" tech can be used in the "new surveillance society" that civilization is marching toward.
The net is pregnant with "ESP8266 WIFI cams" and so many "surveillance-oriented" applications (and also "relay control" applications). I'm trying to think of a few ESP8266 apps that are a bit different (like this Linux server monitoring app) than what's well covered already in blogs and on YTubie.