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Hi, in the code present in the blog, when you run this in arduino, the serial monitor prompts you for the depth of the tank to be given as input. You could also hard code the variable "depth" in the code according to your measurements.

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.

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

Hi. Actually, the setup of measuring water could be at a certain height. This might be problematic for wired connection. So, we setup the bluetooth technology where a tank at a height would provide the information to the receiver bluetooth(slave) for display and control purpose at the human interface side. Thank you for supporting us. :)

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

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

For LCD ​@@rlcprolabs2862

​@@rlcprolabs2862pls suggest something you use

for ultrasonic what resistor ??

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.

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

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

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

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

@@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.

Ok. Thanks for your reply ❤

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

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

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/

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.

Hi, the link for the project has been mentioned in the video description. Kindly check it out there. All the circuit diagram, code and videos has been posted there. Thanks for watching :)

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.

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.

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. :)

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.

Thank you for watching. Do provide us with your feedback to make the video more interesting.

Thank you. :)

Thank you for the suggestion. Will try to include the applications in future related videos.

Sure. In the future videos, we will take this in consideration. Thank you for giving your feedback

@@rlcprolabs2862 Expecting more videos

Thank you for your feedback.

Thank you.