How to Use Water Flow Sensor (Make Water Meter with Arduino or ESP8266)

In this video, I explain how the Water flow meter works and how to use it with Arduino and ESP8266 board NodeMCU. So we can build water meter with arduino.

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Code on video :

[ioanapetrescu]

I was trying to solve the error from esp and I finally managed thanks to you❤

[AtulC-cd]

Accuracy will change with pressure. When water is flowing with low pressure the pulses will be different than when with higher pressure.

[Geek_Daily]

thank you for your video it worked for me and I hope I can get it's score

[kianleddy]

using the esp8266 and the exact code at the end of the video it didn't register any pulses im a bit of a noob so any help would be appreciated

[nathenieldanta]

Hello, I have a problem regarding to print both flow rate and volume. The error of the code is lastTime is not declared in code.
Do i have to declare it in the beginning of the code?

[johnnyb]

Hi, how can i atach a LCD with i2c to Show the datas?

[santhoshkumar]

I have a doubt.. lets say I am setting this up to detect dry run and immediately shutoff motor if there is water . when there is no water, motor pushes the air. will this show as water flowing where in fact the air is moving the fan inside the sensor?

[louie]

How calibrate the water flow sensor can you make video about that😊

[traffic]

Thank you for the video, do you think i can extend the flow sensor wires upto 40 meters? will i be able to receive the pulses from the wire ?

[dravidr.krishna]

This video really helped me a sensor wasn't showing any readings then I realized the problem was with the source and ground connections. Thankyou❣

[ОлегЄвстафійовичЖмурко]

Dear @miliohm, thank you for the simple and clear explanation about make Water Meter with Arduino or ESP8266. Best regards from Ukraine!

[liteglow]

Brilliant. I used so long time to fix the ESP error code, and first try on YT you fixed it !! thank you .. I use this code to send signal to MQTT :)

[ikkedwipratiwi]

Halo kak, kebetulan banget saya lagi ambil sensor ini untuk tugas akhir. Jadi saya sempet disinggung mengenai persamaan yang dipake sensor dalam program. Berarti saya bisa gunain persamaan yang kakak pake juga ? dan juga berarti di dalam program ini tidak menyinggung satuan flow rate ya ka? Semoga kakak bisa menjawab pertanyaan saya, terima kasih kak!

[AnandhuRajesh-pi]

from were did you get the correlation, V=2.663*pulse,can u please explain

[rumpie]

hey there, sorry to bother you! If you're calibrating this sensor using a measuring tool, how much water do you use for calibration? Also, after a few tries, how do you end up with a value like 2.663? Do you take an average? If yes, how do you figure out the average?

[BarMagnet]

Seems to me to be an elaborate way of doing the job. Wouldn't it make more sense to use a fourteen bit binary counter and save on interrupt calls? The core of this device is actually liters per pulse !!!. Therefore you would have automatic quantity measurement. Timer interrupts can give flow rate measurements if required.

[WhereLeo]

can this Water Flow Sensor be installed directly in the pipe where tap water passes?

[JJVgaming]

Hey quick question, I am building a heat exchanger test facility for senior design and need to retrieve flow rate. What I am confused of is that the Arduino circuit builder's online usually places a 10kohm resistor between the flowmeter wiring circuit, I was wondering why the do this? I understand why you'd need a paired resistor for a thermistors, but not for a flowmeter with a digital input. Thanks!

[ewanewan]

I love ur work.
Men can you do the volume and flowrate combine in 1code/1run?
Thankyou in advance

[kunalwagh]

Can i change the values and find how much volume of air is blowed through the sensor??