IoT Water Flow Meter using NodeMCU ESP8266 & Water Flow Sensor | Measure Water Flow Rate & Volume

[@vishalj29]

Amazing, Thanks for such an informative video. Can you tell me if I can connect 4 flow sensors to a single NodeMCU and get the 4 different values at the same time? also how can the water volume data can be stored for future trend analysis.

[@kampermisajankovic9530]

I did everything according to the instructions. I'm getting an error: compilation terminated. exit status 1 Error compiling for board NodeMCU 1.0 (ESP-12E Module). Does anyone know how to solve the problem?

[@hasithadesilva1595]

if you get this error, update all include the libraries to newest version.

[@josephus31]

please tell me why this error is occurring during compile: error: expected initializer before 'pulseCounter' void IRAM_ATTR pulseCounter() others mentioned getting this error but it has not been addressed in the tutorial link. thank you addendum: for anyone else with this issue, fixed by updating esp8266 to version 3.0.2 in IDE board manager

[@fidal007]

Good evening, on your thingspeak page, you've got a flow rate and volume graph. How do I get the volume graph to show total liters passed through the sensor?

[@user-dw1km4rx3v]

Good project, but one thing I've noticed is that you wasted the water you measured. Please stop wasting water as water is precious and scarce. So please utilize it carefully. Thank you and wish you a great day ahead and a healthy day ahead. 🐈😿😸

[@shunemann]

void IRAM_ATTR pulseCounter() { pulseCount++; } WiFiClient client; void setup() { Compilation error: a function-definition is not allowed here before '{' token What wrong?

[@gxseah4163]

I follow the exact same step, the water flow rate doesn't upload to the thingspeak, I also tried to add: WiFi.begin(ssid, pass); It still the same

[@shanthisampath8170]

Same for me..did u crt it?? If yes how??

[@EvertvanIngen]

I was hoping to see the custom PCB from Nextpcb... ohh well

[@charanpamuru1661]

Bro, I feel that if we place the sensor in vertical position we may get more accurate readings.... What's your thought on this?

[@tuanquang6349]

How does it work when the GPIO input of the esp only has 3.3V max. It will. Damages esp quickly

[@ninaduranisaias8566]

Hello friend, I have a question, the EPS8266 module does not connect to thingsbeak. How can I solve it? please help me

[@adilrehman1806]

Thanks Sir, I was in a trouble for a long time. This video lead me to solution. 👍👍👍

[@ninaduranisaias8566]

Hola amigo, me podrias ayudar como soluciono los datos no me manda thingSpeak puse mi API keys y mis ssid pass Me puede ayudar amigo xfavor

[@conradocamilon5587]

thank you very much but im planning to use esp32 sim800 because we dont have wifi in the area. Can you help me

[@rahulr6393]

While uploading this error showing ........ expected initializer before 'pulseCounter' .please resolve ASAP

[@mdshayed8548]

Thanks for any video.... i like your all video... how many volt water pamp ?

[@HowtoElectronics]

5v

[@electronic7979]

Very helpful video 👍

[@adeshinaajibola5114]

Admin pls kindly upload 220v a.c voltage stabilizer using atmega328

[@mohammadmusa1230]

good morning sir please can this your system be applied in a borehole settings

[@divyashree8659]

What is the lcd which displays the rate and velecity

[@LuongSon86]

👏👏👏 Awesome Video, Love it 😍

[@KhairulIkhwan-fq9oq]

Want to know what software do u use to make that circuit plan

[@itsheypumpkin]

awesome project!!!!!! good job sir!

[@user-dw1km4rx3v]

he is wasting water

[@prantanadiul4874]

Hello , I am upload this code properly ,I am use my own api key, own ssid,password but this data is not send in "ThingSpeak Server" why?

[@motom2234]

Hello bro did you able to connect to ThingSpeak. I am facing the same problem.

[@ninaduranisaias8566]

Hola amigo. Pudistes conectarte ? Tengo mismo problema.

[@fede_lopez]

Hello, i have noticed that the device some hours later reset to zero. no power issues was detected, i test it with mobile power bank. and the issue persists. do you known how to fix it? Thank you. (not hardware issue, I have replaced it) thank you.

[@dilipsinghbhati3546]

if we use I2C 16×2 lcd display then what will be the change in code

[@hasithadesilva1595]

this measurements are wrong. how to fix correct letters. anyone know

[@fede_lopez]

Hello, i done and works perfectly! one question, have you any way to sent via mqtt ONLY the differences to avoid send the same data continuously? Thank you.

[@HowtoElectronics]

Yes you can send it via mqtt. See my recent example video.

[@LuongSon86]

​@@HowtoElectronics p/s: but why 5V on GPIO pins input will not destroy ESP8266??? "The ESP8266 is a 3.3V microcontroller, so its I/O operates at 3.3V as well. The pins are not 5V tolerant, applying more than 3.6V on any pin will kill the chip." source: tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html

[@ninaduranisaias8566]

Hola amigo me ayudas no envian datos ami plataforma thingerbeak. Utilize mi Api Key todo eso no me aparece los datos como ago amigo ayudame xfavor

[@user-eo5ub5zl2y]

hello . you have how to reset meter by every day of time 23.59 ?

[@motom2234]

Not connecting to ThingSpeak.

[@DanielSanchezdsh8]

How can I do when I reset the ESP8266 if I want to conserve the last data of volume?

[@HowtoElectronics]

Connect the rst pin to any digital pin of nodemcu and make it high for automatic reset after defining a certain period. You can save the last data into rtc memory or eeprom.

[@chrisjako3404]

Can I use an ultrasonic flow sensor?

[@jasshugarg01]

how to calibrate the sensor

[@mikel7821]

My friend can I use this tool to command an oil boiler to open an electric valve?

[@HowtoElectronics]

No i wont recommend this

[@mikel7821]

@@HowtoElectronics ok thanks

[@davelodia9157]

sir can download your code?

[@HowtoElectronics]

See description link

[@davelodia9157]

@@HowtoElectronics it's possible to link to firebase or thinger.oi

[@yash.s3321]

how can i do the same using raspberry pi?

[@trotyl84]

I would like to use it to measure petrol consumption (95), but it seems to dissolve :(

[@hasithadesilva1595]

How to fix this C:\Users\Documents\Arduino\libraries\Adafruit_SSD1306\Adafruit_SSD1306.cpp:21:25: fatal error: util/delay.h: No such file or directory -> candidates: [] #include compilation terminated. exit status 1 Error compiling for board NodeMCU 1.0 (ESP-12E Module).

[@hasithadesilva1595]

if you get this error, update all include the libraries to newest version.

[@jhonydepp7734]

Sir provide me flow chart and block diagram

[@mramzadg]

Your awesome sir g

[@naveenponneboina6453]

Good project

[@nidhimishra4137]

Cost ??

[@ced3063]

hello can i use the ESP32 on this project with these exact codes?

[@HowtoElectronics]

May be not. Need a little bit modification

[@Uglybob2012]

the code doesnt work. get too many errors an no support at all from this channel.

[@bigpickles]

@@Uglybob2012 the channel is not here for your support. Better to learn how to program ESP.

[@TheDiverJim]

Your site is broken. Would really like to see your code in detail.

[@HowtoElectronics]

I got it fixed now

[@TheDiverJim]

@@HowtoElectronics if you’re interested, you can get more precise time by using timer1. I took your code and ran the calculations in a timer isr which reads the pulse counter at the defined period. Using the 5mhz timer and sampling every .5s.

[@viditsharma3929]

hello how are you using NodeMCU? its operating voltage is 3.3V while the water flow meter requires 5V.

[@HowtoElectronics]

Vin pin of nodemcu gives 5V

[@alexandergraef8940]

@@HowtoElectronics But does the DATA Out not provide 5V then and possible fry the ESP?

[@adrianrivas8960]

​@@alexandergraef8940 I came here looking for the same answer

[@bigpickles]

@@alexandergraef8940 ESP GPIO are indeed 5V tolerant and always have been. They officially announced it several years ago too. Problems arise when reading analog signals on the pins as 3.3v is used as a reference. Use a LLS in that case. Digital use is absolutely fine and I myself use a range of 5V devices on ESP32 boards and have done for years. There's plenty of decent (modern and correct) write-ups online, including links to the comments made by Espressif.

[@todortodorov940]

@@bigpickles Thank you. Can you post a link to some official documentation. I am very confused, as some say man 3,3V on input pins, others says 5V will do as well.

[@siyaramswitchgears5830]

I want to develop a customised water flow system. can you give me online support ?

[@APCreationStatusVideos]

Send code Nice work

[@yogeshitaliya473]

Nice one

[@robertluikart9497]

Could have been helpful, but to hard to understand, coupled with talking to fast.

[@yogeshitaliya473]

Kese ho bhai Corona me sambhal ke rhiyo

[@HowtoElectronics]

Haha thik hu bhai😁. Aap vi samhal k rahiyo bhai. Take care and thanks 😍

[@vikkiakhsanudin331]

i want program arduino :v