Reading out an energy smart meter and indicating it on a LED-Strip.
Every LED indicates equal or less than 50 W. Based on ESP8266.

Showing 1 kW/h max.

I could have change the color map of the indicator, if it goes over 1000 W/h, but now its only blinking the most top LED if maxed out.

In this case i read out a Smart meter (*IP"/status) from Shelly (3 EM, for 3-Phases)

I tested following test loads In the demo video:

00:00 broken toaster with 761 W/h
00:18 vacuum cleaner - about 700 W/h
00:45 Computer start up - 100 W/h
00:54 hot water from electric water heater - about 8 kW/h

Household base load: about 10-50 W