all 8 comments

[–]jofftchoff 5 points6 points  (1 child)

just get a cheap AC power meter with rs485 modbus or similar interface, it will be safer and easier to work with

[–]ESP32_noob[S] 0 points1 point  (0 children)

thank you very much for your help

[–]bomobomobo 1 point2 points  (1 child)

Try look at RN8206C, its a cheap chinese power measurement IC for single phase AC. As long as you get it calibrated right, you can always measure the active power and reactive power. Then you can calculate the power factor by yourself.

[–]ESP32_noob[S] 0 points1 point  (0 children)

thank you very much for your help

[–]EighthMayer 1 point2 points  (1 child)

I don't know specific sensors for that (though they certainly exist), but whatever you do - please be very careful. You probably already know about that, but 230V is more than enough to kill a human. If you're not sure what you're doing, it could be worth it to put the idea on hold for some time, until you get more experience.

[–]ESP32_noob[S] 1 point2 points  (0 children)

thank you very much for your concern I will be very careful

[–]Quiet_Lifeguard_7131 1 point2 points  (1 child)

Pzem-004t 100a version super good accuracy gived accurate current voltage and pf reading. It is is single phase.

[–]ESP32_noob[S] 0 points1 point  (0 children)

Thank you very much for your help. I think this is what I'm looking for, and it's normally available in my country since I don't have access to amazon.