Water Level Indicator project using NodeMCU ESP8266 Blynk & Ultrasonic Sensor

In this IoT internet of things project, I have explained how to make an IoT based water level indicator project using NodeMCU ESP8266 Blynk and ultrasonic sensor. For the LOW water level, the pump will start automatically and you will get a Blynk notification on the smartphone through the internet. Also, you can monitor the water tank level on OLED.

Download the PCB Layout, Source Code, and Circuit for the water level sensor project from the following article:

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Previous Video on Water level indicator project

For this NodeMCU ESP8266 water level indicator project, you can use any ultrasonic sensor as the water level sensor in the tank. You can always monitor the tank water level on OLED and if the NodeMCU is connected to WiFi, you can monitor the water level from anywhere in the world on Blynk IoT App.

In Manual mode, you can control the water pump manually from the switch and Blynk app.

The alarm will ring when the tank is full and when the water level drop below the threshold limit.

During this video, I made the circuit on zero PCB using the PCB layout, and also shared the wireless automatic water level controller circuit and source code.

If you want you can connect a relay to the control pump, otherwise you can use this IoT Project as the water level indicator.

During the ESP8266 project video, I covered the following topics:
00:39 Quick demo on water level monitoring system.
03:16 Required components for the ESP8266 IoT project.
03:35 Circuit diagram of the IoT-based water level controller.
04:14 How to make the water level indicator on Zero PCB.
05:13 Set up Blynk IoT Cloud for ESP8266.
07:44 Source code for the water level controller project.
09:48 Set up the Blynk IoT app for the water level indicator project.
11:40 How to connect relay buzzer with water level sensor circuit.

Required components for the automatic pump controller.
1) NodeMCU ESP8266
2) SR04M waterproof ultrasonic sensor OR HC-SR04 sensor
3) 0.96" OLED Display
4) 1k 0.25watt Resistors - 3 no
5) BC547 NPN Transistor
6) LED 5mm - 2no
7) 2-pin Push Button - 3no
8) SPDT slider switch
9) 220uF 25V DC Capacitor
10) 2-pin Terminal connectors (3 no)
11) 3-pin Terminal connectors (1 no)
12) 5V DC Buzzer
13) AC to DC converter HLK-5M05 5V (Optional)

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Important points:
1. For the SR04M waterproof ultrasonic sensor minimum measure distance is 25cm, so the distance between the sensor and the full tank water level must be greater than 25cm.
2. As per the logic, the ultrasonic sensor will only calculate the water level if the measured distance between the predefined values for the empty tank and full tank.
3. Define all the distance values in cm.
4. You can press the button to stop the buzzer.
5. Here I have used an Active HIGH relay, so the relay will turn ON for the HIGH pulse.
6. You can either give AC supply, or 5V DC supply as shown in the video.
7. Please watch the complete video, otherwise you may face some issues.
**Please take proper safety precautions while working with high voltages.

This IoT-based ultrasonic water level sensor project will help you to maintain the water level in the overhead tank, also it is very useful to save energy and water resource.

If you face any issues please let me know in the comment section.

#waterlevelindicator #iotprojects #esp8266

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WARNING:
This video is for demonstration and educational purposes only.
Each demonstration presents risks and hazards that must be fully understood before attempting.
And should be performed only by professionals
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[TechStudyCell]

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[overengineeredinoz]

Very nice project. I like how you made the paper templates for component placement and soldering.

[adrianvivas]

Hi from Argentina! What a great channel! Thank you so much for the info!

[Akkisworlds]

Firstly thank you so much Sir, sharing this valuable, informative & helpful Content with us. But I kindly request you this system makes for Terrace tank and underground tank both, if you possible 😇👍🏻
Thank you Once again 😊🤝🏻

[tristanreyes]

Hi thank you for sharing, but what if i add flood mode, every movement of the water the alarm will make a sound? What code should i add?

[er.jugalmandal]

Superb job done. Appreciated 👍 your efforts

[mayankgoyal]

Great video, please make another video of it using esprainmaker

[aasumcreation]

Outstanding sir
Amazing
Sir please also provide zero pcb circuit diagram of home automation using esprainmker so that can we make pcb easily sir.

[henock]

Thank you very much for this project, I realized it but my card can't connect to the wifi while everything is well configured need your help please

[miguelemsYT]

Hello, can you please add a chart to the app so one can track the water level through time. Thanks

[moondaju]

Is the demonstrated setup available as a kit to purchase from you?

[_tanmaygharat]

please help my esp8266 is version 0.1 can we use the same libraries?
also i have done whole project but port is not showing in code

[joeabishekj]

Bro can you make a project on automatic switch on for Generator when the current is cutoff

[WawanSetiawan-xnke]

Mantap luar biasa ilmunya sangat bermanfaat, sukses selalu semoga ilmunya berkah. Salam..

[nanuvc]

as per the schematic relay button2 was connected to D12 on NodeMCU, but could not find D12 on the board itself.

[knowledge_seeker]

We did a technology to get data from ultrasonic modules over same DC line so just can use 2 wires instead of 4 wires :)

[TechieVJ]

Can we use mini ESP8266 for this project?

[washimsunjil]

If the water does not rise for 10 minutes then the motor will go to sleep for an hour If you add this code it would be great.

[androidrunner]

if the internet not available then it works or not, without internet automatic control work or not

[AkashJangra]

Can you share the full connection pcb schematic