Automatic Water Level Sensor and Controller

Post the details about DIY Projects.
apuda2010
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 524
Joined: Sat Oct 08, 2011 11:01 am

Automatic Water Level Sensor and Controller

Unread postby apuda2010 » Thu Jan 26, 2017 3:54 pm

After shifting to Bangalore, I set up a 3 feeter. With RO water and a little help from moderate weather, both plants and fish are doing very well. Prabhu's aquarium store in Indira Nagar is a boon for hobbyists.

One problem however is water change regimes. As the tank settles down, changes are infrequent. I do not change the water at all, simply fill up whatever has evaporated. But I was thinking to myself if there is an easy way of refilling water without using very expensive electronics. On checking the internet, I stumbled upon a very elegant Arduino based solution.

For those not too familiar with the Arduino world, the Arduino (and its many variants) is a microprocessor based controller, which can be used to control and automate several mundane things. Most of the projects you see on the net are downright childish if not stupid. However once in a while, you see some more useful stuff, and this small project is one of them.

So here is the logic behind the construct...

A sensor senses the depth of the water from where it is placed.
If the depth goes below a certain level, the digital circuit goes `High'.
As it goes `High', it triggers a relay.
The relay can then be connected to a small pump capable of pushing water up say 10 feet.
As the water fills the tank, the sensor drives the digital ciruit to go `Low'.
The relay deactivates, the pump switches off.

The pump can be a fully submersible one or kept outside. It can pull water from whatever we wish to use - bucket, drum, a small tank, just about anything which stores water.

Hence, all you will need to do is to refill the primary storage. Even if you are in the habit of doing say 20% water changes, you can still use this method. You just dont need to haul pipes and buckets to fill the tank, the pump will slowly do its job. After you have cleaned up, grab a beer and refill the primary storage whenever you want.

Here are some pictures of the build. The total thing cost me Rs.800. I have an earlier external pump with me. But you can probably buy submersible ones for less than Rs.1000.

Image

Image

Image

Comments are welcome. The funny part is I have still not had the time to actually hook this thing up :).



User avatar
SCORPIO
Site Admin
Site Admin
Posts: 10348
Joined: Tue Oct 04, 2011 11:01 am
Location: Delhi, India
Contact:

Re: Automatic Water Level Sensor and Controller

Unread postby SCORPIO » Fri Jan 27, 2017 9:46 am

Nice DIY.

I hope you will get time.
“Take up one idea. Make that one idea your life - think of it, dream of it, live on that idea. This is the way to success.”

...................Swami Vivekananda

syed.ali
Aspiring Star of AquapetZ!
Aspiring Star of AquapetZ!
Posts: 1149
Joined: Tue Oct 11, 2011 4:27 pm
Location: New Delhi

Re: Automatic Water Level Sensor and Controller

Unread postby syed.ali » Fri Jan 27, 2017 2:21 pm

nice dada, did you use a ready made project or you assembled it totally on your own

User avatar
sushant
Moderator
Moderator
Posts: 2868
Joined: Fri Oct 07, 2011 12:36 am
Location: Faridabad, Haryana
Contact:

Re: Automatic Water Level Sensor and Controller

Unread postby sushant » Fri Jan 27, 2017 4:09 pm

Nice project dada, but IMO this sensor won't last long in a gun is environment, use float switch instead for longer life and low cost.

Sent from my ASUS_Z00ED using Tapatalk
Sushant

apuda2010
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 524
Joined: Sat Oct 08, 2011 11:01 am

Re: Automatic Water Level Sensor and Controller

Unread postby apuda2010 » Fri Jan 27, 2017 10:41 pm

Syed...assembled on my own.

Good point Sushant. The sensor is approximately 10cm above the water level. Let us see what results we get !

syed.ali
Aspiring Star of AquapetZ!
Aspiring Star of AquapetZ!
Posts: 1149
Joined: Tue Oct 11, 2011 4:27 pm
Location: New Delhi

Re: Automatic Water Level Sensor and Controller

Unread postby syed.ali » Mon Jan 30, 2017 5:46 pm

Wooow dada, pretty neat, I usually end having my DIY looking ugly