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Trying to make a custom automated water container for my UV purifier. Can anyone help with where to begin?

meethaWASABI

New Member
I Have an old UV purifier, which had its motherboard burnt off, but i jerryrigged a system with basic adaptors and uv chokes to keep it running. It now gives water whenever its turned on. Which made mr lazy and i dont keep my water bottles filled anymore. which resulted in me drinking a lot less water than i used to. Whenever I came home from college, I had almost no water stored, and i often got entangled in other works and forgot about it. I had a recent sunstroke, and my doctor said it was due to dehydration, which i probably knew why happened. So. I wanted to build an automated system tostore water off my purifier.

This is a basic flowchart.
 

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danadak

Active Member
Thats a very simple project overall.

A float sensor that turns on/off a relay to control pump. Transistor
has to be rated for current and voltage and power for relay.

1656200781716.png


Or more sophisticated you can use pressure or capacitive
water level sensor and code an Arduino to control the relay/solenoid.
This also allows one to add safety controls, like pump stall or pump
on too long. Something like this -

Here is mBlock code, not exact, a starting point, you have to check the logic
and order of commands....the values used for sensor tests also would be
changed to conform to your choice of sensors.

Note code is present to detect over current condition in motor for protection.

1656199274480.png



mBlock takes your coding blocks and converts that to Arduino code.

Arduino Nano board, second from left, more that enough, with transistors to
drive relay.

Regards, Dana
 
Last edited:

meethaWASABI

New Member
Thats a very simple project overall.

A float sensor that turns on/off a relay to control pump. Transistor
has to be rated for current and voltage and power for relay.

View attachment 137609

Or more sophisticated you can use pressure or capacitive
water level sensor and code an Arduino to control the relay/solenoid.
This also allows one to add safety controls, like pump stall or pump
on too long. Something like this -

Here is mBlock code, not exact, a starting point, you have to check the logic
and order of commands....the values used for sensor tests also would be
changed to conform to your choice of sensors.

Note code is present to detect over current condition in motor for protection.

View attachment 137605


mBlock takes your coding blocks and converts that to Arduino code.

Arduino Nano board, second from left, more that enough, with transistors to
drive relay.

Regards, Dana
The first one fits my needs perfectly. Got to order the float sensor, didn't know they exist. Also, i dont want to use the arduino for I am going to use this as an appliance, and can't sacrifice a nano for it. Thanks a lot. I'll re on this thread once I build it.
 

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