How to make a Digital Voltmeter with Arduino | Arduino Projects
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- เผยแพร่เมื่อ 13 ส.ค. 2017
- How to Make a Digital Voltmeter Arduino.
#voltmeter
#arduino
using Arduino analog pins and Arduino coding
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Thank you for the video! I just made one to help with my future projects and it worked first time. What would I need to change in order to make this also measure Amps?
You will need a small current sensor module for that
Helped me a lot. Thank you Sir.
Glad it helped
Awesome project, how can I measure 2 voltages simultaneously? The second voltage is in millivolts.
Excellent
I love it i think we can use this voltmeter to check 0-12v while adding a voltage divider👍
Yes we can
@Khrishna check this Video th-cam.com/video/hh2Cmc9ygeQ/w-d-xo.html
@@JCVRTVOfficial ha
really nice video.... it helped a lot...
thnku
+Shobhit kansal thnku
i'd connect like a 10meg ohm resistor from ground to the analog input, should stop the reading form bouncing around so much which it is doing because when not reading its floating.
Kirk Nelson yeah thats great idea i will try it
sir can u plz tell me which software u r using for simulation
I am using Anduino ide
if we use this for measuring above 5 volts,then we will use voltage divider ckt ,which will dissipate power, is there any other method..?
You can use large value resistors
They will dissipate less power
@@RoboCircuits ok sir, thanks
nice👌👌
thnku
Very nice but could you use different colored wires in future. Gets very confusing to golden oldies :)
Okay i will take care of that
Many thanks
Can i do it with arm(nucleo-F401RE) like this way?
If it have any function to read analog values. Then we can
something wrong with the code... but i use the right pin?... or its just bcause i use Arduino Uno
Syahrul Graal send me the code you used
Hello brother kya ye A/C current ko measure kar sakta hai
Nhi... Ye sirf dc current ko measure kr skta h
What software is used to design visual circuit?
Fritzing from fritzing.org
could also use tinkercad if you like
If you want it fully accurate as a normal voltmeter just replace this line of code: volts = voltage/1023*5.0;
with this line of code: volts = voltage/1023*4.67;
Which software is used for program ??
Arduino ide
@@RoboCircuits
How l can get the out put ? Please tell me
Can we use this method in Arduino Uno R3 Board??
Yes we can
Using Arduino uno voltmeter reading fluctuate when source is external and stable when 5 volt internal using but both supply are stable please suggest idea
Use a 10k resistor between ground and analog pin
i tried but fail
The error is my LCD screen is displaying rectangular dots what to do.
Hello,
I get the following error when compiling the code: #include
Arduino: 1.8.9 (Windows 10), Board: "Arduino Nano, ATmega328P (Old Bootloader)"
C:\Users\pavel\Documents\Arduino\12\12.ino: In function 'void setup()':
12:9:2: error: 'lcd' was not declared in this scope
lcd.begin(16,2);
^
C:\Users\pavel\Documents\Arduino\12\12.ino: In function 'void loop()':
12:16:1: error: 'lcd' was not declared in this scope
lcd.print("voltage = ");
^
exit status 1
'lcd' was not declared in this scope
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Please help me
Install liquidCrystal.h library
There is a small error in the video. In the lcd declaration writes led.
Hello, can I use blue pill for this project?
Blue pill???
Hi! may i know the exact steps to take to measure up to 24Volts?
It can measure 5v only
@@RoboCircuits can i modify it to measure up to 24 volts?
@@muhd3345 resistor voltage devider.
Yes voltage divider can work
@@muhd3345 did you ever work out a way to properly do this, if you have im working on somting sililar and would like your input! :)
hello when i connected and completed the code it says liquidcrystal.h no such file or directory what happened?
Install library liquidCrystal
Can we check to 1.5v to 12v
Yes we can but for that we have to use potential divider
Hey its say lcd was not declared in this scope how??
You have to add library LiquidCrystal.h
And declare liquidcrystal lcd{lcd pins}
Check examples of liquidcrystal from example in arduino ide
LiquidCrystal led(12, 11, 5, 4, 3, 2);" led" should be changed with "lcd". there is a typo in the code. correct it and you should bi fine.
Can i use Arduino UNO?
Yes you can
Hey man, I cant find the code on your website. Could u send the link pls?
#include "LiquidCrystal.h"
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);
float input_voltage = 0.0;
float temp=0.0;
void setup()
{
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
lcd.begin(16, 2); //// set up the LCD's number of columns and rows:
lcd.print("DIGITAL VOLTMETER");
}
void loop()
{
//Conversion formula for voltage
int analog_value = analogRead(A0);
input_voltage = (analog_value * 5.0) / 1024.0;
if (input_voltage < 0.1)
{
input_voltage=0.0;
}
Serial.print("v= ");
Serial.println(input_voltage);
lcd.setCursor(0, 1);
lcd.print("Voltage= ");
lcd.print(input_voltage);
delay(300);
}
@@RoboCircuits love u
how to measure 100 volts DC ?
For this you will need to built a voltage divider circuit of you must use an external module
How to make this 2 in 1? For voltmeter and clock in 1 display.
We can add a seperate button for it and a add a timer
@@RoboCircuits how if without button?
Yes... We can use upper line for time and lower for voltage
@@RoboCircuits can you share for make voltmeter and clock tutorial? Please
Okay
in uno it needs to be multiplied by 4.89970972 to be very accurate
Okay... I will try that out
Could it measure up to 9v
Askar technology it can measure upto 5v
Ok thanks
its ok now but every circuit i tested.. it just read 5v
@syahrul watch this th-cam.com/video/hh2Cmc9ygeQ/w-d-xo.html
Hello brother this circuit make with volt and current meter means volt amp Watt and temperature show on one display for 5v
Please make a More video
Sure i will make
@@RoboCircuits I am waiting for this video please send me link after uploaded the segment
Thank you
Sure
Hey why my lcd Cant work it's just White n blue it's don't have any word
Azzalea Zubaidah check your pins
How to let it measure higher voltage?
We can use potential dividers to increase its range
RoboCircuits like connect a 10k resistor in serie with the battery?
Make a potential divider circuit
Same as like a potential divider or variable resistor
Nice idia
Technical and sports Planet thanks
Hey Your pin is led must change to lcd
Means? Is there any mistake?
RoboCircuits yep
Azmie Aziz what mistake???
RoboCircuits 4:57 see it
Azmie Aziz oh sorry for that
Nice video and what is the range of the voltage it can measur? Subscribe
+ELECTRONIC JUGAAD up to 5v of voltage
This multimeter voltage successful
This multimeter resister and components check this
How
Yes it works accurately
The music is annoying and distracting. Just by yourself a boombox.
youpattube1 ok will take care of this in later videos
Please send code
Siddula manojkumar code will be uploaded on website soon and i will send you the link
Send me the code and circuit diagram
Check description
there is no code and circuit diagram in description
Plz code
+Sb electronic the code is given in video you can pause it and write it
This was supposed to be about arduino, not some dope learning to use a graphics program. Why didn't you do that in advance. Nobody is impressed.
youpattube1 watch the whole video BEFORE commenting
Reply jarur kijiyega
Hi
code has mistake
What?