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water level dectection..

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yukito

New Member
can anybody could help me in design a water level..?

the possible components that i would be using are, transistor, diodes, led, resistor, capacitor... i'm not allowed to used ic....

in a container their are 5 measurements, empty, 1/4, 1/2, 3/4, and full.. in each measurements the led must turn on, but if it is empty the led in other measurements must be off, and it is in 1/4, the led in empty must be off and so on....
 

KMoffett

Well-Known Member
Does the transistor have to be a BJT (bipolar junction transistor...a "standard" transistor) or can it be a MOSFET (metal oxide semiconductor field effect transistor)?

ken
 

KMoffett

Well-Known Member
If you don't have enough basic electronics knowledge to figure out how these components could be combined to implement a water level [dectection] circuit, you could start by Googling: water level detection circuit

You will find things like this: Water Activated Relay

Ken
 
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yukito

New Member
i do have a basic knowledge in components but in combining those, i don't i have enough knowledge in those thing..
 

KMoffett

Well-Known Member
Did you Google?: water level detection circuit
Did the link give you any ideas on how it might be accomplished?

Ken
 

yukito

New Member
i already reach in google and in this site. i had some ideas... i'm still try do accomplish my circuit... i hope that it will work..
 

KMoffett

Well-Known Member
Good! Ask questions if you run into problems.

Ken
 

yukito

New Member
help

can any body help me in me water level project. i already had a ckt but the problem is, the led won't alter if it is going to indicate its level...
 

KMoffett

Well-Known Member
You might want to include the circuit and sensor arrangement you're using.

Ken
 

yukito

New Member
my circuit

this is my circuit i may.... i need, is to turn on one led according to its level... but the result of it is all the led are turning on... hope you could help me...
 
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PedroDaGr8

New Member
Ummm, why not use a float connected to a lever + arm. use the arm to bridge contacts, with contacts stretching from E to 1/4, 1/4 to 1/2, 1/2 to 3/4 and 3/4 to full.
 
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