Want to use PZEM controller to detect current flow direction

Need Help With My Project
1

I want to determine the direction of the current

2

The PZEM-004T is an AC detector, so the current is alternating.

Pete.

3

I use solar power. so I use electricity or produce electricity. I want to determine the direction of current.

4

Then I’d say that a solar charge controller is what you need, not a PZEM device…

A charge controller that uses RS485 communication protocol will give you lots of very useable data…

image
D2E761E6-F392-4862-912C-3694FDA875E6.png750×1334 90.6 KB

Pete.

1 Like
5

image
image640×1136 70.5 KB

I had grid inverter. What I need is to follow it. I use pzem 004t v3.0 but it reads both ways. I want to distinguish it

6

You won’t achieve that with a single PZEM, that’s not what they’re designed to do.

Pete.

7

I have found it. but it is v1.0

image
image800×402 98 KB

8

I’ve split this into a new thread, as it’s unrelated to the original topic.

Pete.

9

Can you help me?

10

It sounds like using a V1 PZEM is your solution.

If you can’t achieve that then I think you need to provide lots more data about your system so that people with similar systems can add their ideas.

Pete.

11

V1 version no longer produced

12

I realise that, but lots were made.

Pete.

13

This is the inverter I use. rs232 communication. I don’t know if it can connect to arduino?
http://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-II-1.5KW-2KW-3KW

14

It should be possible.
I’d start by searching for a document that describes the protocol, baud rate etc and what each of the registers returns.
Ideally it will be a system where you request data from certain registers and that data is returned.

Pete.

15

Toan,
Yes, v1 is still available on eBay or AliExpress for little cheaper.

I also interested in the bi-direction for AC current as I want to see the power produce by solar and the power that I get from the grid.

Let me know if find the solution for i.

Minh cung muon Blynk doc duoc AC current cho 2 chieu, cho Minh biet Neu ban lam cho no works.

Key

16

I live in Vietnam. I can’t buy from there. very difficult

17

Hi Toàn,
Can you buy to url below:
https://hshop.vn/products/mach-do-ap-dong-cong-suat-nang-luong-ac-100a-giao-tiep-uart
Thank you

18

It is v3.0.

19

Hi Toan,

Are you able to make PZEM-004 v3 to detect/read current flow direction?