Measure AC Voltage with ESP8266 12E + ZMPT101B | App Inventor | Adafruit IO MQTT

Hello, this is another tutorial using the ESP8266 12E or NodeMcu V1.0, and ZMPT101B AC voltage sensor and we will be able to measure any voltage up to 250 VAC, and by Any I mean whatever the signal shape and thanks to this library and code I've used, in the Arduino tutorial I showed that it performed better than some multimeters.
Also you'll find some examples on how to use with MQTT, like Adafruit IO and a small local App that I made using MIT App Inventor 2.

Wirings, Libraries and Codes:
http://surtrtech.com/2020/04/08/measure-any-ac-voltage-250vac-with-zmpt101b-and-esp8266-12e-with-android-app-adafruit-io-mqtt/

How to use ZMPT101B with Arduino (Should check to understand better):
https://youtu.be/WVcY108AAAw

ESP8266 12E Playlist:
https://www.youtube.com/playlist?list=PLoJRJlMpE5m3o6ZVJs7LNTfWGr-jkXpL2

Arduino Modules playlist:
https://bit.ly/2Dh4pJC

Arduino Projects playlist:
https://bit.ly/2Fxm2Y7

Arduino Shields playlist:
https://bit.ly/2APsndI

Siemens TIA Portal playlist:
https://bit.ly/2MhtSFT

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