ARDUINO ENERGY WATT METER WITH SCT-013 AC CURRENT SENSOR
This article is a version of previous article(arduino visual ICMP ping server monitor) with the option of multiple IP addresses to be pinged.
Imp.guru has now closed down and Sparkfun have changed some protocol or other and it also does not now work, so you will have to find other sites to post the data to . The rest is still very usable just the software lines need to be changed to accommodate the new site.
This project shows how to check the measured fine dust of your current location using App. The sensing data by fine dust sensor is interlocked with Blynk service through Ethernet.