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- เผยแพร่เมื่อ 31 พ.ค. 2024
- In this video, I've explained how to make a voltmeter using Arduino. Here, I've used 16x2 LCD display and also one potentiometer for calibration to get nearly accurate readings. The range of the voltmeter is 0 to 30 volt.
Download link for the program:
drive.google.com/open?id=1RGf...
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Excellent! Friend. Exactely what I was looking for. And nicely explained, with extreme precision and simplicity. Thank you. Now, million dollar questions. 1) How do I do the same WITHOUT ARDUINO, with current components (like LM324)? And 2) How to turn this from thermometer to VOLTAGE DISPLAY (for a solar panel or battery for instance)? Maybe a dedicated video Thanks for good inspiration. I send you PRANA for success and wealth.
Please explain this for 0-100 volt input
Very good video!!! I downloaded your code...and few comments...you did only a single measurement of the voltage....I will suggest to average around 500 points... The second points that I will make... is that there is a strong debate as if the divider from the analog conversion should be 1023 or 1024...but since you are calibrating...I guess that will not be a problem. Keep the good Work!!!
What is the code use brother and the logic scale conversion used ?
Exactly what i was looking for... Thank you bro...
Well done! Please combine with dfplayer, would you?
Nice explanation 👍
But why the voltage displayed on the LCD is fluctuating little bit?
Is it due to the power supplied to the 10 bit ADC of arduino?
Or do we need more precision in ADC, 12 or 16 bit?
Very good question. Even I don't know the exact reason. Sometimes we can see some multimeter also do this fluctuations.
To solve this problem, I think we have to find out the average value. 🤔
@@EEWave Okay. Thank you for your response. I'll try by taking an average value, that could be one of the solution.
Hello. Can you help me out , I have problem with uploading the code to my Arduino nano every. PLEASE!! PLEASE!! PLEASE!!
thank you for this you really helped out exactly what i was looking for :)
You're very welcome!
Can u help me..
I see voltage measures fine, but When I put 12V, it detects like 12.00V , 12.06V, 12.12V this
this chnages alot and IDK what to do.
Take average and display that..
Add filtering capacitor from ground to the analog input pin
And check, i think that flikering is noise on analog pin
Well. Done. Nice. Project.
Sir is ki program kese Karen ge please help
Thank you so much!!
Thank you! Great video.
Can this be used for detecting voltage in electrified water? Thank you
I'm not sure on this. We have to check it practically.
@@EEWave so, did you check it?
@@ShivamJha00 he did not survive D:
Nice tutorial. Thx.
CAN WE MEASURE THE VOLTAGE OF INVERTER BATTERY OF 150MAH .PLZ REPLY SOON.
Yes, you can.
How many amps I can connect to the input?
You are asking about the amps through the voltage divider? ?
Great but it bouncing a lot and not very accurate, i have the same problem do you know how to get rid of those bouncing
I guess use capacitor
@@cresteoffyargente8125 No it didn't help i tried many ways but none worked so i changed the arduino nano to uno, Uno is much better ! I still dont know why it happen with arduino nano !
But for me, none of them worked. Even I tried with Mega. I don't understand why it is so...
Don, t worry ho Jay ga.
i want a codind this project
contact number
Send me the circuit diagram
no capacitor?
Yes I thought that also these will prevent abrupt changes in voltage reading