Liquid level control system

Using Arduino Project Guidance
1

I need a control system for a liquid system (to be shown off at a local school science fair :slight_smile: that will accomplish the following.

(1) Liquid level in Container A can fluctuate non-deterministically. This is the input.
(2) Level of Container B is to become equal to level in Container A as soon as possible.
(3) Container A and B should probably be equipped with fast-response ultrasonic liquid level sensors.
(4) Control system will activate 2 water pumps: (a) PumpIn to pump water into Container B, and (b) PumpOut to pump water out of Container B, in order to achieve goal (2) above.

I'm seeking someone who would offer a contract to design this simple feedback control system and to fabricate it for me, including buying all hardware needed.
Anyone interested can contact me directly at ptvien@aol.com
Thank you.

2

ptvien:
to be shown off at a local school science fair

ptvien:
I'm seeking someone who would offer a contract to design this simple feedback control system and to fabricate it for me, including buying all hardware needed.

Is that how the science fair works these days? No wonder we're falling behind in the sciences. Why don't you do something for the science fair where YOU actually LEARN something.

3
  1. wrong forum, this kind of request belongs in Gigs & Collaborations.
  2. wtf does this have to do with science? What science principle are you trying to even demonstrate here?
  3. wtf is wrong with your education system that doesn't equip you with the skills to figure out something as simple as this by yourself?

Indeed ultrasonic sensors will do fine, they're pretty fast. A reading each second will be more than enough in this situation. After that it's just a matter of switching on and off the required pump, all in all a couple dozen line of code should do it.

4