Measure 220v ac with arduino without transformer.

Hello Guys,

I need a little help for a few of my projects, i want to measure 220v ac but i dont want to use a tranformer is there any other simple way to measure it ?

can any of these be able to measure 220v ac?

https://www.or97.com/acs712-30a-range-hall-current-sensor-30a-module
http://www.arduinopak.com/Prd_Detail.aspx?Prd_ID=20044

regards!

All three are links to devices to measure CURRENT, not VOLTAGE.

The first one is using a hall sensor, but is not really rated for 230volt AC.
The other two are using a current TRANSFORMER.

A transformer is an easy way to get the needed galvanic isolation (safety).
Leo..

All module can measure 220VAC (230VAC?), only not the voltage but the current :wink: Is that what you want?

Thanks alot found the volatage sensor

Umair78:
Thanks alot found the volatage sensor

share the link please

Juraj:
share the link please

https://hallroad.org/product/single-phase-ac-voltage-sensor-module/

AC Voltage sensor module ZMPT101B 250V Voltage transformer module Arduino:

I don't see any detailed specs, schematic, or application notes, so I hope you can figure it out, and I hope it works for you. And, I hope it's truly a transformer (isolated) and otherwise safe...

Hi,
Do you want to measure voltage level of the 220Vac OR know if the 220Vac is ON or OFF?

Why can't you use a transformer?

Thanks.. Tom... :slight_smile:

https://www.plexishop.it/pdf/ZMPT101B - Datasheet.jpg

http://www.zeming-e.com/file/0_2013_10_18_093344.pdf

the data sheet for this transformer is simple

the linked module shows the circuit to be a simple board.

not sure of the protection on the secondary (or primary) of this transformer.

Umair78:
https://hallroad.org/product/single-phase-ac-voltage-sensor-module/

That module IS transformer isolated with op amp to supply a DC voltage relative to the AC voltage.

Paul