Home Power Monitoring with the PZEM

Have you ever wondered what is chewing up all your electricity but didn't want to buy an expensive power monitoring kit?

This video shows how you can use multiple low cost power monitoring boards (PZEM-004T V3) that can be used to give you a deep insight into your home electricity consumption and also shows how it can be integrated into HomeAssistant, a free IOT software that will not only make it easy to record power but also make easy to access and visually appealing.

[rbland]

Good video what I've been looking for.
Make sure you put spacers between the PZEM boards and the wood behind it. Any moisture in the room may cause the wood to arc across the live and neutral pins and may cause a fire

[kwacz]

Very good explanation. You did a really good job showing how they work and the only video I have seen that explains how to use multiple sensors on the same 2 pins.

How quickly can you take readings from the modules? I am looking to get a new reading every half a second or every second to get an update from 2 modules. Is this at all possible?

[kozfelipe]

Is it necessary for the power supply of the PZEM module to be the same as the circuit it is measuring, or are they independent of each other? I noticed you jumpered the power source between them

[dmk]

great video, will you also share your Esphome script for four PZEM?

[hazardede_n]

Can I use esp32 and connect each pzem004t to its own rx tx, I have 3 of them but I want to connect each one with my esp32 independently, is it possible ?

[hazardede_n]

How did you externally aliment your esp without connecting it to your pc. How did you compile the code ??

[PhatTan-yovy]

Using three pzem004t with arduino nano to module sd card

[irfansensoy]

Hello. There are 3 pzem-004t v3 in my project and I am trying to get data with nodemcu. I can retrieve data for each pzem one by one without any problems. However, when I connect to D3 and D4 pins, whether I define an address or not, only the last address is returned and mostly data is missing. Can I have your code that shows the sensor readings except the important parts?

[noexit]

sir can you make the tutor for the main board that connected by 4 pzem?

[pratapraju]

This is what I was looking since long. How about using ARDUNO MKR 1000 instead of esp32

[HussainAljamri-re]

Hello sir, could you please post the full code of the setup? thanks allot

[skd]

@FionnOCH Can this PZEM004T be used with an Arduino Uno (or) Pro Mini. Am looking to get a three phase power measurement.!?! Any arduino libraries specific to three phase would be a welcome...

[darkphotonllc]

nice video, also exactly what i want to do, working on some OSS code to manage all of this, and a lot of the hardware setup is theoretical, but this is great, I need to monitor main, but I also need to monitor the outputs of each relay individually to know their pull/status, etc. can you drop a note on the extension from your microcontroller and how it gets connected to the board? I'm guessing you're only actually using 4 pins from the "duino" 5/gnd an rx and a tx for each of the N PZEMs?

[joserosado]

Don't use software serial. It will lock after sometime and you will receive the same values from de pzem until you reset the all thing!

[pierrealmendez]

Hi. Do you have a wiring diagram of this project?

[LucasMeneezes]

Nice job! Can you share with us the code?

[TallerSalvatoreJimeno]

Hi, if for example I declare the following addresses:
PZEM004Tv30 pzem0(&Serial2, 0x10);

PZEM004Tv30 pzem1(&Serial2, 0x11);
Is there something to modify in the software of the modules?
Or is it just connecting the 2 modules and arduino is in charge of giving it the addresses?

[tomasind]

power factor 0.25?! nonsense.. current 0, 949, power 57W, voltage 242V. omo's law I=Power(kW)/Voltage(V). I=0, 057/242=0, 248A. The power factor should be between 0.8-1. Electric heater should be about 0.9-0.95

[ramsai]

We connect aurdino to raspberry Pi for building server

[MagivaIT]

oh wow, please normalise or balance your audio, im not going to chase the volume up and down, frustrating video