Hello friends, in this instructable you will see how to make a simple automatic water level controller.so let's begin...

Step 1: Things Needed

> bc547 npn transistor - 2 pcs.

> 12v relay - 4 pcs

> 100 ohm resistor - 2pcs.

> pcb.

> rainbow cable.

> Red led - 1pcs.

> white led - 1pcs.

after getting all these things. let's begin....

Step 2: Circuit Diagram

just watch the video to study the circuit diagram...

Step 3: Working

it works as when the upper sensor detects water it turns the outlet off by and when water level goes below medium it switches on the relay and this process goes on.

About This Instructable



Bio: Hello friends, i am a guy love to make things related to tech and creativity.my main moive is to make engineering easy for everyone ... More »
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