Water Level Indicator | Ultrasonic Sensor | Will it sense accurately?

This is the water level indicator which uses two measurement methods:
1. Using simple multiple wires
2. Using ultrasonic Sensor
The first method has some certain disadvantages which led to another measurement method that is the ultrasonic sensor.
Detailed coding for both methods is being done in Arduino Uno. The water level is shown on 16x2 LED/LCD display.
In the upcoming video, a Bluetooth device is introduced and data is sent wirelessly and a message for water level is announced on speaker through ISD1620.
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[@rlcprolabs2862]

For the project description in more details about the circuit diagram, codes, components. Please refer to the blog: rlcprolabs.wordpress.com/2021/02/12/water-level-indicator/

[@EmanMarcaida]

Is ping vs distance graph constant for all? Planning to Install it in a 1000L Tank and I'll just compute the ping vs distance using your equation

[@rlcprolabs2862]

Hi. For our testing purpose, we used a 25L water bucket in which results were satisfactory in steady-state conditions. The equations were able to correctly reflect the distance. Do install and test it out in larger system, the larger scale should also work. Only thing to consider is that, commonly available ultrasonic sensor gives correct readings upto 2m or so.

[@roopesh668]

Hey, the same formula doesnot works for ultrasonic level sensor, where there will be separate probe. What is the formula for that?

[@rlcprolabs2862]

Hi, Roopesh. I was not able to understand the question. What separate probe is it? We mounted ultrasonic sensor directly on the top of bucket lid and from there we calculated the time it takes to travel to and fro. Is that what you wanted to ask? Do check out this link: rlcprolabs.wordpress.com/2021/02/12/water-level-indicator/

[@sandyroars6707]

What is the code for I2C lcd and ultrasonic sensor percentage monitoring?

[@rlcprolabs2862]

Hi. Please do check the pinned comment for the blog post of this project. You will find the implemented code there.

[@dr_techph1646]

what diode sir did you used

[@rlcprolabs2862]

Hi, we used general purpose diode, IN4007.
Here is the link for the project description: rlcprolabs.wordpress.com/2021/02/12/water-level-indicator/

[@vishalshetty4326]

4:02 second project

[@rlcprolabs2862]

Hi. Did you want the link for the second project with bluetooth capability? Here is the link: th-cam.com/video/6fTto0inpEk/w-d-xo.html

[@ssaahil]

Can we give the input from a mobile app by using HC 05?

[@rlcprolabs2862]

Yes, we can give the same. Check the updated version of this: th-cam.com/video/6fTto0inpEk/w-d-xo.html. Also the same being sensed in mobile app: twitter.com/ProlabsRlc/status/1382883763433054209?s=20

[@ssaahil]

Is it possible to do it with 1 BT module sending the value of depth from mobile?

[@rlcprolabs2862]

@@ssaahil Yes we can work with just 1 bluetooth module also. But the issue is Depth sensing module would be at a height at terrace and LCD for visual would be inside the house. That is why we needed two bluetooth module. If you don't want to use the visual part. You can remove the 2nd Bluetooth module and directly connect with BT module at terrace with app.

[@ssaahil]

Ok. Thanks for your reply ❤

[@pookoye]

sensor reading showing 37 then goes down to 32, irregular value. How to avoid this, possible to put delay?

[@rlcprolabs2862]

Hi Monish. Yes, during transients such as disturbance in water when adding causes the distance between ultrasonic sensor and water level change abruptly. Possible solution as you said could be introducing delay or provide an averaging solution when in transient. During steady state, it was providing with fairly good values.

[@rlcprolabs2862]

Due to pandemic, we were in between completing the final setup which got halted. Possibly, in the upcoming days, more projects will be showcased. Keep tuned to the channel. :)

[@skd7626]

Will this work on long run

[@rlcprolabs2862]

Sorry for late reply. We have tested this setup for some days but not for longer term. Since this is an experimental setup, a product can be built with durable, water proof enclosure and battery for long term solution.

[@mathan.]

What is the value of resistor you use? It's urgent make fast reply for ultrasonic

[@rlcprolabs2862]

For ultrasonic? or LCD brightness resistor you are asking about?

[@LataThakurathi]

For LCD ​@@rlcprolabs2862

[@mathan.]

​@@rlcprolabs2862pls suggest something you use

[@iddddd900]

for ultrasonic what resistor ??

[@God_Existence5]

how can we change percentage to inches and cm in water level

[@rlcprolabs2862]

Within the code provided in the pinned comment, we convert the ultrasonic data from remaining cm level of water in tank to percentage. You can use it to get the value.

[@rlcprolabs2862]

Within the code provided in the pinned comment, we convert the ultrasonic data from remaining cm level of water in tank to percentage. You can use it to get the value.

[@God_Existence5]

@@rlcprolabs2862 im very new to use this coding will you plz make coding for me in cm...........

[@meetpatel-db8hj]

Sir i required wiring diagram and programming code.

[@rlcprolabs2862]

Do check out the diy page where we have listed all the information: rlcprolabs.wordpress.com/2021/02/12/water-level-indicator/

[@ALLINONE-ec9jq]

i want link with bylinh can you write code

[@rlcprolabs2862]

Hi, We had completed the blynk integration with arduino as well. But we did not write it up on the blog or completed the video for the same. Soon, we will update it on the blog. There you can look into it.

[@user-od4pi9xn4c]

Hi Sir,
Can you please send Arduino code

[@rlcprolabs2862]

Hi, Please check the pinned comment. We have updated the code details on the blog.

[@harshrajkanth5153]

Can you share code for ultrasonic sensor.

[@rlcprolabs2862]

Hi, Here is the link for the whole project in the blog. rlcprolabs.wordpress.com/2021/02/12/water-level-indicator/
Code is also shared there with explanation.