Tachometer (RPM Measurement) using IR Sensor & Arduino

In this project, we have designed Digital Tachometer using an IR Sensor with Arduino for measuring the number of rotations of the rotating Motors in RPM. Simply we have interfaced IR sensor module with Arduino and 16*2 LCD module for display. The IR sensor module consists of an IR Transmitter & Receiver in a single pair that can work a Digital Tachometer for speed measurement of any rotating object.
Download the source code from here: how2electronic...
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Website: how2electronic...
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[@christianobinor5095]

thanks

[@adityajoshi1141]

Plz Can You explain Circuit Simulation When I Wrote A Code On Tinkcard simulation It Gives me A error

[@jiteshsanap7033]

sir please explain the counter part .
what is the for (i=1;j

[@alftr5479]

What is 12 in your formula? Please sir

[@limxinjie]

is it possible to plot a graph of the rpm from 0sec to 20 sec?

[@HowtoElectronics]

Ya possible
Either use processing IDE or Serial Plotter

[@syafina4135]

I have a high torque motor gearbox with a max rpm of 10. but when I tried to implement your method, the result doesn't make sense like it was shown on LCD 137 value of it, of course, my blade just 1. didn't accurate at all.

[@electronic7979]

Excellent

[@Vikkram1993]

What is maximum switching frequency of IR pair,i mean what max rpm IR pair can detect?

[@HowtoElectronics]

Practically it was displaying value upto 12000

[@VictorianMaid99]

Seems simple enough 😉

[@adityajoshi1141]

Hey Do You Know How To simulate This Circuit ??

[@VictorianMaid99]

@@adityajoshi1141 well not simulate...I have built on like it but want a different configuration.

[@driftkid270]

hello i’m using an arduino code for a stepper motor, if I add this code underneath my motor code should it work well?

[@jaimevasconez8219]

thank you man

[@monkeybytegames]

Good job buddy.

[@vinayaksingh8829]

I need to measure rpm of 6 different motors using arduino due.Can you tell me how to do it?

[@shahriarahmadfahim6457]

I've made it. It works. Great

[@shahriarahmadfahim6457]

Helllooooooooo

[@gedasivaramchowdary4442]

while was running the code it was getting error

[@adityajoshi1141]

Hey buddy can you give me Right code

[@santanu1097]

How to get Odd numbers in the RPM measurement? Count of input pulses within 5 seconds x 12 will always give the RPM output in Even numbers. Please explain.

[@SanukaSenumitha]

super video

[@alejandromancilladelacruz7999]

Hola, he hecho el tacometro pero al momento de hacer dos mediciones, la pantalla queda congelada en lectura de RPM

[@chiragkhandelwal659]

sir can you please send the circuit diagram in proteus of this code

[@rosedicherose3415]

Hello, good explaination on the project. Yes it works. But when I compare with manual method (using stop watch) the reading by this project is not even close. Pls3, explain further on the formula. Someone had ask already... what is 12 in time*12..

[@erosensei7968]

Because rpm means revolutions per minutes, considering a 5 sec that sensor is sensing, 5x12 = 60 sec which is a minute. And /3 because the motor need to has 3 strips, if you put only one strip in your motor, you dont need to divide anithing

[@perinoveriza1658]

thanks you sir

[@lildj7395]

Hi. How would this be done without using microcontrollers?

[@moussarekim4836]

How to count cycles of something using Arduino please

[@randomstuff6782]

Can we take rpm as input and control servo /stepper motor? Pls guide how to

[@PoYoTheWild]

You can

[@karmaidoskarmaidos6452]

hi sir actually iam doing this project now so please say me that how to give coding to get (RPS) also?

[@pierpa_76pierpaolo]

Hello. I tried your scheme but I don't understand why it doesn't work for me. Arduino Nano works well with other sketches .... Correct links but no results. Now I try again to compile the code again and for the nth time I'll feed it all and I hope it works. We hope well. You could propose a multi-function project such as an Ecu jet for modeling use with the various data that alternate. It would be great. Thanks.

[@HowtoElectronics]

This projects work fine. It has been tested. Check the connections.
Sometimes it doesnt work if IR sensor is damaged.

[@cjones4433]

I would have liked this if you would have shown the tachometer giving actual measurements instead of your hand

[@arbaazmir854]

my lcd just shows yellow screen, with no blocks

[@monssefsefiani586]

I don't understand how u calculate the rpm

[@rahulkumaryadav4915]

In RPM =(time*12)/3 please explain this, especially why we divide by 3 in this and sensor 5 and 3 what are the use of these sensor, please tell..

[@HowtoElectronics]

3 is the number of blades in the fan. Use 4 , 5 or whatever according to number of blades in your fan

[@anushavincent5519]

How to measure the speed of wheel with no rim on it.? Will aluminium foil help?

[@HowtoElectronics]

May be this setup wont help.
You need optocoupler type setup

[@anushavincent5519]

@@HowtoElectronics Then how do you say this program can be used for rpm measurement?

[@electronicsideas1361]

exit status 1
stray '\342' in program

[@MrLonli1]

same to me

[@tanbirulquadirchoudhury4818]

Thanks
Did you not have a motor to show the RPM, instead you had to use your fingers

[@chandru4072]

I don't understand formula

[@karmaidoskarmaidos6452]

Is there any harmonics in it? if it have then which of its device having?

[@shivkushwaha5356]

good job sir

[@HowtoElectronics]

Thank you brother :)

[@rahulkumaryadav4915]

While compiling this code it's giving error that is stray '\342' in program..

[@HowtoElectronics]

Issue with your Arduino IDE. Corrupted

[@rahulkumaryadav4915]

Thanks sir

[@khamalabryson5672]

delete the (") and retype again

[@perinoveriza1658]

can we measure rpm engine ?

[@zoopitoopi9395]

Yup if u can manage to get an access to the direct output of enginge. Otherwise move the tyre free and measure the typre rpm. If thats enough for you

[@satishlohar5088]

what is max speed can masure???

[@HowtoElectronics]

Anything, any speed

[@electronicsideas1361]

COMPILE ERROR LINE NO 49 exit status 1
stray '\342' in program

[@ammaralexabdullah5541]

can you pleas tell me what is this line------ RPM=(time*12)/3;

[@HowtoElectronics]

Formula for converting into rpm. Dividing by 3 bcoz of 3 blades in fan

[@ammaralexabdullah5541]

@@HowtoElectronics ok thanks a lot

[@ukaszdworski4493]

@@HowtoElectronics what is 12 in formula RPM??

[@adithyav9283]

@@ukaszdworski4493 This guy is a nuthead who doesn't know anything about what he has written in the program.
This module counts the no of time the specific object has been encountered in every five seconds. to convert this 5 second into minutes, it is multiplied by 12. 5*12= 60secs = 1 minute.

[@SHAKILKHAN-nl9yu]

In that code file the error how can i find this error

[@sitinurshazwaniemohamadjas9908]

hye sir can u please give me the coding please

[@HowtoElectronics]

The code is already in the website.
Visit the link in the description below

[@Datascienceexplorer]

Why rpm = time * 12 ...
What is 12 here

[@theorangeapple5851]

it is probably a constant

[@electronics369]

Wrong code

[@adityajoshi1141]

Hey buddy did you get right Code