How measure DC Voltage and Current and build Energy meter with LCD Display | Lesson 104

[@electronic7979]

Helpful video 👍

[@yousaftoki1599]

Amazing project sir.....

[@robojax]

Thank you! Cheers!

[@Electorr]

great . shokran.

[@nadasahraoui8392]

thenk you, you are the best

[@robojax]

You are the best. شکرا

[@sureshsukumaran7474]

Thanks

[@fellpower]

The code in the link IS NOT the code at the video ^^

[@eternal3789]

brother i want to measure 60v 60 amp with this but what problem we can face in this method in future if use continuously 6 hours.and what can be the solution for that

[@edinfific2576]

Isn't there a sort of an averaging function that can be placed in the code, so that your current readings contain less noise and variations?

[@robojax]

I have shown how to take the average. The rest depends on the tolerance of the shunt resistor. Get better shunt resistor.

[@jeffvenqueleir2036]

nice video but mabe you can give a example in the futur with a ads1015 or a ads1115 for a shunt and voltmeter with a voltdivider

[@robojax]

I have got converter and God willing will make the video. Thanks

[@jendelakelas501]

what app do you use to change the output current setpoint

[@mdmostafashahid948]

can i apply your project for my 254VDC and 50A Bettary Monitoring. I confused for 254VDC, you connect Shunt output directly in arduino, please replying you best

[@robojax]

Hi, may be you don't understand the meaning of shunt. Shunt resistor means the current passes through it and the voltage will be max 75mV or 0.075V so 240V is not there . watch agian.

[@mdmostafashahid948]

@@robojax I know the signal voltage is 75mV but my load voltage is 254vdc 50A, so how can i make my project

[@ALLINONE-ec9jq]

please add bidirectional dc current measurement with esp32

[@robojax]

It would be Very useful and I put it on my list. Thanks

[@arhamupadhye5157]

Hii My question is when you set the analog refrence to internal i.e 1.1v won't it affect the readings of voltage coming from voltage divider?

[@bbjodel3778]

Hi you have this code for an ESP32 ? Measuring 60V max and 70A max Thanks

[@robojax]

I have to write it. Not in hand

[@herrkronen9694]

Hi ! Does this method work for AC Current? or is neccesary to make constant sampling to get Peak to Peak Current and then pass it to IRMS Current ? Plz

[@robojax]

if you convert it DC and then do what you said, it should work.

[@InnovationGuruSmartHomeSavings]

Is that possible to AC ?

[@robojax]

No. Use this sensor Measuring 5A-30A AC and DC current using Allegro ACS712 with Robojax Library (code added into video) kzbin.info/www/bejne/aXSWZHemmLiqf9k

[@sayax4464]

Hello I am in sti2d terminal and I have a project to present which is the smart cane for blind people and in this project I must use an accelerometer which plays the role of the motion detector and I must add the alarm clock/sleep function it that is to say when the cane moves towards an axis it lights up and when it does not move it is off. I need help because I'm really lost

[@KuntalGhosh]

Do this with stm32 or esp8266 or esp32 .

[@robojax]

I will see if I can. My statistics show very few people have interests. I try to make videos that most of my audience benefit from it.

[@weisichen6438]

can use the arduino to track the DC charging date and save it to excel?

[@robojax]

See this video fully kzbin.info/www/bejne/ipXYhIKOa6iAqJY

[@mohammadmohd2541]

I have a question, since the current is suppose to move in the bath witch has the lowest resistance and assuming that that the resistance of the load is higher than the resistance of the voltage measuring circuit, then this would create a problem. The whole current would be moving in the voltage measuring circuit. Do you have an explanation?

[@robojax]

This will not happen. Measuring voltage is separate from current.

[@SimjetAU]

AC current and voltage project with LCD would be really good..there is very little info on the internet other than the Emon stuff

[@robojax]

Here is current sensor for Ac kzbin.info/www/bejne/oau7oKiJr9uWppo

[@nandkishoreparmar4016]

can we measure negative dc current also

[@robojax]

no. Just connect positive and negative in reverse and measure.

[@arhamupadhye5157]

Hey!! Great explanation!!! Can you please write this code for displaying voltage and current in tm1637 display

[@robojax]

Hi, TM 1637 is just junk. Very hard to use with decimal points as I spent hours in many days . Then gave up. I found a display that can display easily any value here is the video kzbin.info/www/bejne/apKmmHuEf9Fsobs just watch and it would be very each to use the energy meter code and display it.

[@arhamupadhye5157]

Hey!! thanks for the support, but the problem is hk16k33 is not easily available. What if I wanted to display only the current and voltage part from the energy meter in a 16x2 lcd display. Please tell the changes that I would have to make in the code!!

[@robojax]

Hi, the HT16K33 should replace this junk TM1637. I have made so many videos unfortunately for TM1673. I wish I could delete them . I remember when I found the HT16K33 I was like "yes I found it" kind display. I have the link to purchase under the above video and I am also selling it on Amazon. Good luck.

[@mostafaelwatidy355]

Can it be used with an op amp to read current less 10 amps?

[@robojax]

No. Hyde smaller shunt for any current you want . I thought there won’t any questions as I explained the tolerance of 6.5% for 100A shunt . Please b watch carefully

[@OmarAlejandroPérezPérez-f6f]

@@robojax Hello, What´s your recomendation for this case to measure current lesst 10 amps?

[@raoufselwaness]

can i use the same method to measure 10 -15 amps through 0.1 ohm resistor thanks in advance

[@robojax]

Yea you can use it with the shunt . Just calculate the mC value of the resistor and A ratings. Like 20A 30mV

[@raoufselwaness]

@@robojax thanks a lot 👍

[@اسلاميات-ه1غ]

Hello brother. I want to move the servo 180 degrees if the voltage reading is less than 20 and I want to go back to normal if the voltage reading is more than 20 volts .. Can you give me the additional code

[@robojax]

Hello, all my videos are to teach. So learnd it from this video kzbin.info/www/bejne/e16rXmefnN6asKM

[@اسلاميات-ه1غ]

@@robojax i need the code . i saw your video but useless

[@robojax]

just go there and get it. All videos have description below and there is link. didn't you see the "Roboajx.com" on the video?

[@raghvendrasutar9880]

Hello sir thank you for the helpful video, Can I measure current upto 500A and voltage upto 35V with your circuit and code ?

[@robojax]

Hi, it seems you have not watched the video. Please watch

[@raghvendrasutar9880]

@@robojax I watched, just confirming that because I am doing a project in which I have to measure current upto 500A and voltage upto 35V and I am new in electronics. If you ans me then it will be very helpful. Thank you 🙏🏿

[@eternal3789]

@@raghvendrasutar9880 have done it?

[@raghvendrasutar9880]

@@eternal3789 Yes

[@eternal3789]

@@raghvendrasutar9880 plz Can you share it with me?

[@Giannix]

helpful video😍🤟 hmm just wanted to ask if i wanted to show the (Ah) of the battery instead of energy. what would be the code?

[@robojax]

Hi, I have explained the code fully and if you know how to calculate the capacity of battery with pen , easily you can do it as we have all the information needed to calculate capacity. Just learn the formula and then come back to the video and use the values from the code.

[@mazharsultan492]

Dear robojax How can i used this code for arduino dc energy meter for battery high voltage and low voltage protection pls help me

[@robojax]

It can work with virtually any voltage. For protection, it has already action and I have show how to take action. You just need use a relay to connect or disconnect something when your protection condition is met.

[@mazharsultan492]

@@robojax I was tried but code is not complied pls help me how can I take action both current voltage protection with relay

[@AI.AUTOMATION.]

Hii sir In my project my dc voltage is 450v dc 40A and i need to measure the current with Arduino it's safe to Arduino to connect control ground and arduino ground?? Please reply love from India 🇮🇳❤

[@eternal3789]

Have you design this??

[@your-p1b]

Can i get the code?

[@robojax]

Hi, I might have shown robojax.com more than 10 times on the screen. Beside all videos on KZbin below them there is "show more" which is called description. I have link in the description of this video.

[@SouravDutta-fj6zc]

Can you please implement the same project in NodeMCU ESP8266 ?

[@robojax]

I spent over a week to write code and library and test the project to make it work Z I just checked it and in 363 days it was been watched about 12000 time and brought me $29. Now if we calculate hourly earnings it is $0.58/hour . My knowledge and experience worth $100/h and this KZbin is not appreciating knowledge. Only prank and junk is earning. Not worth working on it. I am sorry for myself.

[@TheUnofficialMaker]

don’t use on ac could kill you. use ct’s. don’t use on high voltage!

[@robojax]

This is for DC only.

[@mdmostafashahid948]

can i apply your project for my 254VDC and 50A Bettary Monitoring. I confused for 254VDC, you connect Shunt output directly in arduino, please replying you best