I like your video, it's very clear, starting from the pictures of the circuit of each tool, device design, and program. I like it. Always healthy, good people❤
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.
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.
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.
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?
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
@@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?
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.
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..
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.
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
Very nice project, I am also trying to make this as my college project, but I am facing the issue that , i want to measure multiple bulbs power with the help of only one sensor what you are using because I have some financial issue, so my question is that,Is it possible to measure power of all bulbs with only one sensor ? Pls help my project has stopped.
How can i make it work without the amperemeter. Also, there is a big diference between the new blynk app and the shown on the video, can you help me throught this?
You provide valuable information. You explain all the things in a clear manner. However, now that Blynk 2.0 software is available, can you please explain the same code for Blynk 2.0.....?
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.
Major Mistake, the current sensor must messure the current in the load cable, not in the cable from the voltage sensor XD Good Video and good documentation. with what software has you make the images with shematics ?
Good point dear. I was just searching the comments to see if anyone saw that the current sensor was not properly wired. Thank you. Afterall, very good video, very informative. Thank you @How To Electronics
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.
@@HowtoElectronics SIR can you make a video on DC Load power consumption and energy meter for Dc and battery stutus and it's Graph, using ESP8266. with blynk iot , option.
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
I like your video, it's very clear, starting from the pictures of the circuit of each tool, device design, and program. I like it. Always healthy, good people❤
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
Shraddha.. your voice is amazing..... I saw this video again and again just for your voice and your project is too excellent...!🙂
hi, i have tried, but the current sensor, not have responsive read the current yet, how can i fixed it?
Very informative as you express all the points in a very nice way.
Glad to know you liked it.
3:00 current sensor
4:02 voltage sensor
Thx
But not sure if it is considering of power factor because that factor also affects KWh
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
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.
Thanks for this. Just a doubt. Will this work with 3 phase supply? If not, what should be added to make it work?
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.
May you kindly provide guidance on how to utilize this in a three-phase system?
Oh!! What an excellent project I really love it
What is the name of the type of globe holder used here? I can't find it anywhere.
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
Please add the circuit diagram to lcd display please
How if I want to measure 3 phase current and voltage using that sensor?
What pin will I use?
how we reset it after every month? recoding the whole? How to add a reset button?
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?
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
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
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.
How to connect 16x2 LCD module 12C adapter with esp32??
Can I use different current sensor instead of sct013, will it works
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 your system also do the energy savings or just read the energy? and the application only showing the sensor measurement?
Hi
There is a resistance in the drawing 100E what does it mean ?
Love your voice sounds beautiful sound 🤩🤩
very helpful video.
THANK U
The 100 ampere current sensor eill also output 1 Volt at the output???.
how to calibrate in ide arduino the voltages and currents for example that appear 220v and the real current?
madam just what i wanted and what a sweet voice you have
Wow! simply explained👍
This is really useful. Thank you so much 😊😊😊 for this video.
hey please help,we cant connect the device to blynk app new version,the device isnt getting online,please help,what to do.
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..
Please tell me what changes do we need to make to measure for Dc voltage less than 50 volts
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.
How to setup display
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.
Mam can I use HC05 Bluetooth module instead of ESP32
It is really cool project
And the quality your video is really damn awesome!!!!
Can we connect other appliances like refrigerator, AC?
Is the code below the programming video effective?
What extra libraries are to be instal in Arduino software
Can we log the data for atleast one month?
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! 😂
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.
Could this work for industrial machine , to calculate power consumption
Sir, to measure the voltage of each device connected to nodemcuesp8266 is possible ?
What all libraries are to be installed to perform this experiment ??
What about Power factor calculation
Excellent project. congratulations How to measure 3 phase power? can you please help?
what is calibration factors here and how you found these values mam?
i like ur video and downloaded it for further knowledge
What values of resisters should I use when using SCT013 30A/1V CURRENT SENSOR
just go with the similar values, then calibrate accordingly
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.
What a wonderful project .
I what to ask for a code that I use if I add keypad to the system
i need to buy this project what is the cost ???
Very nice project, I am also trying to make this as my college project, but I am facing the issue that , i want to measure multiple bulbs power with the help of only one sensor what you are using because I have some financial issue, so my question is that,Is it possible to measure power of all bulbs with only one sensor ? Pls help my project has stopped.
How much volt capacitor is this. 250v 10uf capacitor is ok for it
Its for 5V device. You can use 10uF, 16V or 25V.
Very useful project 👍 and Greatttt video
Keep it up! How to electronics team.
can you please drop the link for the Blynk Application
please
How can i make it work without the amperemeter. Also, there is a big diference between the new blynk app and the shown on the video, can you help me throught this?
No. You need to measure the amps and the elapsed time. You cannot get to amps from resistance because resistance is also varying with loads.
Nice video,pls can you use the blynk app to control AC
Can you tell me you to do this with new blynk app
My project 🙊
You provide valuable information. You explain all the things in a clear manner. However, now that Blynk 2.0 software is available, can you please explain the same code for Blynk 2.0.....?
I will soon make another video with Blynk 2.0
@@HowtoElectronics i will wait...
Instead of sct103 can i use acp712??
I don't know... Did you find out?
I saw an extra variable resister on breadboard circuit ,you did not mentioned it ‘s value. Please kindly mention the value.
is this posible use more than 1 CT, more channels, than one?
With I2C, yes
has anyone done the connections on tinkercad ? kindly send the circuit
great job, just subbed
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 a mcu esp-8266?
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 🙏
Can you help for dc voltage and current
can i use ESP8266 instead of ESP32 ??? , please give me replay
How did you measure pf
Major Mistake, the current sensor must messure the current in the load cable, not in the cable from the voltage sensor XD
Good Video and good documentation.
with what software has you make the images with shematics ?
Thank you for the feedback and letting me know about the current sensor placement. The schematic has been designed using Fritzing software
Good point dear. I was just searching the comments to see if anyone saw that the current sensor was not properly wired. Thank you. Afterall, very good video, very informative. Thank you @How To Electronics
Can you show the circuit diagram of lcd display connection to the node mcu please
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.
is it possible to use GPIO10 and GPIO9 as analog input?
Hi ,
Can i connect DC load and measures Enargy uses through Blynk?
These sensors are only for AC
@@HowtoElectronics SIR can you make a video on DC Load power consumption and energy meter for Dc and battery stutus and it's Graph, using ESP8266. with blynk iot , option.
why your reading are incorrect? how to calibrate to get correct readings
In 202 feb blynk had an update,added templates,can you update the code?
How to check ct sensor and voltage sensor is working or not ?
Please help me
Very Good 👌
I Subscribed 👍
Thanx lady.. for ur sweet voice information
How to calculate the cost of energy consumption?
Can you give all the component's name required for this project?
My blynk app is not showing values why
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
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
Hi sir I want to add alert also to this project
may i know what software is used to make the design diagram?
Download frtizing software from fritzing.org
Does this Consider power factor (something due to inductive/capacitive loads) ??
For considering power factor, you have to switch to ADE7757 IC.
can u provide the simulation
Can anyone help me with sct013 030
I am not getting the perfect current values
Even though my current is 5A it's showing 0.6A
What to do???
If you use a different sensor the values in the code will change.
can it show the readings of inductive or capacitive loads ?
The sensors claim is accuracy on single phase with measurement every 5 seconds. I don't think it can measure max instantaneous Amps.
@@simonmasters3295alright