ADD varistance to protect power supply if high potential appear


http://internetofhomethings.com/homethings/?p=530

https://www.letscontrolit.com/forum/viewtopic.php?f=2&t=1078&p=5299&hilit=acs#p5299

https://hilo90mhz.com/remote-power-monitoring-system-ac-or-dc-current-measurements/

http://www.ti.com/product/INA219/datasheet

http://www.ti.com/lit/ds/symlink/ads1115.pdf


https://www.letscontrolit.com/forum/viewtopic.php?f=4&t=627&hilit=PME+extender&sid=f064b3a5cda5f7cf9fee3ffc32a6de3e&start=20
https://www.letscontrolit.com/forum/viewtopic.php?f=5&t=2126&hilit=AC+current


https://easyeda.com/editor#id=f5fc1398138645be9c82e64f809283bd



https://focus.ti.com/lit/ds/symlink/opa344.pdf