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NodeMCU: measure voltage and current (DC)

PostPosted: Wed Sep 18, 2019 4:52 pm
by zion2k

I want to learn how to use an arduino/esp8266. As my first project I want to measure the voltage and the current.
I thought I use a display to show the values and I want to switch a LED on if a defined amount of watts is reached.
Is there a way how I can measure both values. The NodeMCU has only one ADC (A0) input. I also read, that the ESP8266 has problems if the A0 input and the Wifi is used at the same time.

Any advices for me?

Thanks in advance,