IoT Based Smart Electricity Energy Meter using ESP32 & Blynk Application
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- เผยแพร่เมื่อ 2 พ.ค. 2024
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𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
In this project, we will learn how to make our own IoT Based Electricity Energy Meter using ESP32 & monitor data on the Blynk Application. With the current technology, you need to go to the meter reading room and take down readings. Thus monitoring and keeping track records of your electricity consumption is a tedious task. To automate this, we can use the Internet of Things. The Internet of Things saves time and money by automating remote data collection. Smart Energy Meter has received quite a lot of acclaim across the globe in recent years. So, why not build our own IoT Based Electricity Energy Meter?
We need to select the current sensor as well as the voltage sensor so that the current & voltage can be measured and thus we can know about the power consumption & total power consumed. The best current sensor available in the market is SCT-013. This is SCT-013 Non-Invasive AC Current Sensor Split Core Type Clamp Meter Sensor which can be used to measure AC current up to 100 amperes. Similarly, the best voltage sensor is the AC Voltage Sensor Module ZMPT101B. The ZMPT101B AC Voltage Sensor is the best where we need to measure the accurate AC voltage with a voltage transformer.
Using the SCT-013 Current Sensor & ZMPT101B Voltage Sensor, we can measure the all required parameters needed for Electricity Energy Meter. We will interface the SCT-013 Current Sensor & ZMPT101B Voltage Sensor with ESP32 Wifi Module & Send the data to Blynk Application. The Blynk Application Dashboard will display the Voltage, Current, Power & total unit consumed in kWh.
Source Code + Schematic + PCB Link: how2electronics.com/iot-based...
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Thanks for this. Just a doubt. Will this work with 3 phase supply? If not, what should be added to make it work?
is your system also do the energy savings or just read the energy? and the application only showing the sensor measurement?
May you kindly provide guidance on how to utilize this in a three-phase system?
How if I want to measure 3 phase current and voltage using that sensor?
What pin will I use?
Very informative as you express all the points in a very nice way.
Glad to know you liked it.
Hi again, can you please let me know what are those value for in emon.calcVI(20, 2000); and here Serial.print(emon.Vrms, 2); are you referring to analog input?
Also, because I'll not be using voltage sensor. Thank you so much
Will your program measure the power if any phase difference is associated?
Oh!! What an excellent project I really love it
The 100 ampere current sensor eill also output 1 Volt at the output???.
Please tell me what changes do we need to make to measure for Dc voltage less than 50 volts
I saw an extra variable resister on breadboard circuit ,you did not mentioned it ‘s value. Please kindly mention the value.
how to calibrate in ide arduino the voltages and currents for example that appear 220v and the real current?
Very nice. Is there a version of this for split phase use ? 120-0-120 also is there a way for this to be used with DC power for solar use? thank you.
Is the code below the programming video effective?
is it possible to use GPIO10 and GPIO9 as analog input?
This is really useful. Thank you so much 😊😊😊 for this video.
Hi
There is a resistance in the drawing 100E what does it mean ?
But not sure if it is considering of power factor because that factor also affects KWh
hi, i have tried, but the current sensor, not have responsive read the current yet, how can i fixed it?
what is calibration factors here and how you found these values mam?
how we reset it after every month? recoding the whole? How to add a reset button?
How to connect 16x2 LCD module 12C adapter with esp32??
Wow! simply explained👍
The CT clamped on wrong wire in your video, It should be on the wire in series with 'Lamp LOAD', but in video it is wrongly shown on voltage sensor input wire which is parallel to lamp. There fore you can not get the correct readings.
Thank you shraddha for this video. This was the most awaited video ❤️ your efforts are really appreciated ❤️
Bro, its Shraddha not Shweta 😶. Anyway thanks for appreciation.
@@HowtoElectronics ohh my mistake😅
@@HowtoElectronics nice , thanks you sis
What all libraries are to be installed to perform this experiment ??
Could this work for industrial machine , to calculate power consumption
How to check ct sensor and voltage sensor is working or not ?
Please help me
Very useful project 👍 and Greatttt video
Keep it up! How to electronics team.
Hi. Could you help me? I have small power surges ie VRMS and IRMS.It mostly happens to me when I turn on the blink application How can I fix it. Thanks in advance.
Can I use different current sensor instead of sct013, will it works
Sir, to measure the voltage of each device connected to nodemcuesp8266 is possible ?
Really helpful tutorial
can we use any other sensor instead of sct 103
What is the name of the type of globe holder used here? I can't find it anywhere.
Can you show the circuit diagram of lcd display connection to the node mcu please
First of all Its very nice project and explain every thing in video and website...
but i have a question, what was the % accuracy you got in voltage range (200 - 250)V
please reply..
How did you measure pf
What about for 3 phase power supply?
It's a great project! Do you have any report on this project. I am willing to work on this for future. If you have than do a reply please. Thanks.
Best ever project seen today by you thanks this is possible for 3 phase supply
Thanks for the appreciation. The current sensor and voltage sensor is only for single phase. For three phase we need to use some other voltage current sensor.
@@HowtoElectronics ok sir seperate 3 we can use for voltage same for current
Good video, i need to understand something, the GPIO pin of the esp32 is 0 to 3.3v logic level and the voltage transformer is 0 to 5v, so the question is how do you manage the this voltage level incompatibility in the esp32 ADC ?
The two 100k resistors make a voltage divide by 2, so with Vcc at 5V, the mid point of the resistors is 2.5V. The 2.5V is fed to the ADC input via the 100R resistor. The current clamp is across the 100R resistor and when the clamp measures a current it generates a voltage across the 100R resitor, adding (or subtracting depending on the ac cycle) to the 2.5V. So the 2.5V could vary between 1.5V and 3.5V with 100A flowing through the clamp. The 10uF is probably for noise supression. That is my thinking anyway. Let me know if I have misunderstood.
no pin other than ADC (ADC0) can be used to measure analog voltage, as the CT & Voltage transformer has Voltage output(i.e. Analog). As we all know there is only one pin there on NodeMCU ESP8266 to measure analog signals, which is not at all used in the above schematic.
@@mohanvakil4604 The ESP32 is used here.
Very legit question with no answer yet
very helpful video.
THANK U
It is really cool project
And the quality your video is really damn awesome!!!!
Excellent project. congratulations How to measure 3 phase power? can you please help?
Hi,
what will happens when the board restart does it start Kwh counting from 0 or continue
where it stopped ?
bro what is the range of the potentiometer
Love your voice sounds beautiful sound 🤩🤩
Excelente proyecto. ¿El código fuente cambia si utilizo una tarjeta Wemos ESP32 D1 R32?.
In the video, we can see the USB cable connected to the ESP32 chip. Is this to provide the DC supply for the chip? Could we use the output of ZMPT101B with a basic AC-DC rectifier circuit to power up the ESP32 chip? Or this would affect the measured power quality? Thanks.
Use any 5V DC adapter to power ESp32 board or a usb cable or any Ac to 5V Dc converter. Al of them should work great.
Don't go there! The live AC is connected at one end.
can i use a mcu esp-8266?
How to setup display
i like ur video and downloaded it for further knowledge
Can you tell me you to do this with new blynk app
Can you help for dc voltage and current
What a wonderful project .
I what to ask for a code that I use if I add keypad to the system
May i ask what board specifically did you choose in Arduino ide? Thank you
ESP32 surely, but you should select the board you want to use.
How much it costs?
great job, just subbed
3:00 current sensor
4:02 voltage sensor
Thx
Please add the circuit diagram to lcd display please
hey please help,we cant connect the device to blynk app new version,the device isnt getting online,please help,what to do.
i tried it, but the value of the parameters shown zero. please help me:(
Good day madam
Thankyou for an informative viedio
Can I use nod mcu insted of esp32
What changes should I make for using with nod mcu
Johm
Please could you tell me which version of Blynk was used in this project and which other versions of brink this project will be compatible with. Thanks.
This was done with old blynk app.
The new blynk app is different from the old one.
Please let me know How you are going to measure analog voltage on GPIO pins(GPIO09 & GPIO10 / SD2 &SD3), however no pin other than ADC (ADC0) can be used to measure analog voltage, as the CT & Voltage transformer has Voltage output(i.e. Analog). As we all know there is only one pin there on NodeMCU ESP8266 to measure analog signals, which is not at all used in the above schematic. Please explain
She is using an ESP32, not an ESP 8266.
@Posho Exactly
Does this Consider power factor (something due to inductive/capacitive loads) ??
For considering power factor, you have to switch to ADE7757 IC.
Hi,
Do you have any project for bi-directional DC or AC energy monitor using Blynk?
Does blynk not register negative values?
why your reading are incorrect? how to calibrate to get correct readings
Useful for me thank you
Great one. Just to know what capacitor voltage did you use cause it only says 10uf ?
10uF, 16V. Or you can use anything below 100V.
What values of resisters should I use when using SCT013 30A/1V CURRENT SENSOR
just go with the similar values, then calibrate accordingly
Hi! Thank you for this instructional video. Can you show us how to do the calibration of current and voltage
use a 200W and a 60W filament bulb in parallel and measure the current using a multimeter.
In my test, it showed that this setup draws 1.03A AC, so hence you can calibrate your current clamp accurately by fiddling the current calibration value accrodingly
Now to calibrate the voltage, its a simple task of fideling the calibration value till you hit the sweet spot
@@pauljackson2126 thank you sir for your helpful comment. I appreciate it
What about Power factor calculation
Please show the complete circuit with LCD screen connection
How did you calibrate your sensors? I'm a student and I want to know how did you calibrate it. Hope you answer my question, it'll be a huge help for me.
Calibration process is explained in website article
How to make with 3 phase power meter?
Please reply 🥺🥺🥺
Can you please help me by making this only with current sensor, voltage 240v as standard voltage. By using current sensor alone is it possible to do the project
What I am thinking is
In void loop
Take the analogRead of the current sensor and serial println 240*analogRead
Absolutely! That's how the power company does it, surely! 😂
My blynk app is not showing values why
Can we measure power consumption of seperate devices in home seperately and overall power consumption cumulatively?
Yes you can either from the hardware end or through software
it seems like the esp32 wifi range is only up to 200m. Would it be possible to extende the range to cover much greater distances? For instance, would it be possible to use networks that can transfer meter data across an entire country using WiFi, LAN or Mobile Data?
Only 200 metres! Jeeze what do you expect for 10 dollar?
can you provide report on this project
Awesome project nice bro...
i am trying to make the same project. very disappointed because power factor reading are incorrect. there is no way to calibrate power factor reading.
Shraddha.. your voice is amazing..... I saw this video again and again just for your voice and your project is too excellent...!🙂
What values of resistors should I use if I'm using SCT-013-15 that is 15A to 1V CT? Can you please let me know?
Thanks.
No need to change any resistors for any current sensor.
@@HowtoElectronics Thank you so much 🙏
Hy i need pcb of this how i can get this.plz help me
Sorry for the newbie question. I'm planning to add, additional SCT-01 Current Sensor as I want to monitor another line. Can i use other digital input and still use the same setup as this?
do i need to change any values on the resistors, or capacitor. thanks in advance
Lookup the I2C specs of the sensor...I must do likewise.
I don't think the code presented uses I2C.
Google "SCT 013"
Super
Instead of sct103 can i use acp712??
I don't know... Did you find out?
Nice video..In video timer (3:58) you have cut one of the wires..How do we know which is the useless wire that we need to cut?
The useless wire is not insulated and has thin bunch of wires. You can easily identify.
@@HowtoElectronics Thanks a lot...Also, is it possible to connect the bare end of cut wire of SCT and that male header pin of ESP32 with a F-F jumper cable directly?
Yes it is possible
Will the hardware and sensors be the same if I’m using DC source for the source of the load?
That is ac current and voltage sensor. You cant use DC.
@@HowtoElectronics what do you recommend for ac source other than home outlet?
And thank you for the fast response
Can u share the block diagram of this?
Very Good 👌
I Subscribed 👍
Thanx lady.. for ur sweet voice information
i need to buy this project what is the cost ???
super.. i very interest. i ask you if can 150A? i very need 150A current. thank you
can i use ESP8266 instead of ESP32 ??? , please give me replay
Very Nice Video! Can you recommend DC current sensor that can measure mA signal? thankyou
Haha. I just spent a day trying to find a sufficiently accurate solution.
You need to measure mV across a fixed resistance shunt, and an op-amp to boost the mV (which may be negative or positive depending on the direction of current flow) to a signal between 0 - 3.3v that the ESP or Arduino can measure on an analogue input pin.
That said my non-invasive meter has a DC voltage measurement, but I don't want to spend all day reading and recording the read-out.
I think there is a code error which accounts for the zero kWh readings.
Nice video