Today I am going to make a circuit of automatic water pump motor controller circuit using 2N222 Transistor and relay.
Let's get started,
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Step 1: Take All Components As Shown Below
Step 2: Circuit Diagram
Connect all components according to this circuit diagram.
Step 3: Connect Transistor to Relay
Firstly we have to solder Collector pin of transistor to coil-1 pin of the Relay as solder in the picture.
Step 4: Connect Diode to the Relay
Next we have to connect diode to the circuit.
Solder +ve of diode to coil-1 and -ve of diode to coil-2 of the relay as you can see in the picture.
Step 5: Connect 220 Ohm Resistor
Next we have to connect 220 ohm resistor to base pin of the transistor as you can see in the picture.
Step 6: Connect Battery Clipper Wire
Solder +ve wire of battery clipper to coil-2 of the Relay and
solder -ve wire of battery clipper to emmiter pin of the transistor as you can see in the picture.
Step 7: Connect Two Wires for Water Sensor
Solder a wire in coil-2 of the relay and another wire in 220 ohm resistor as solder in the picture.
Step 8: Cut Phase Wire of Motor/LED Light (220V Appliance)
Next Cut phase wire of Motor/LED light as cut in the picture (220V appliance).
Step 9: Connect Cut Phase Wire
Now connect cut phase wire to the relay as given in circuit diagram.
Solder a wire to common pin of the relay and solder another wire to NC pin of the relay as solder in the picture.
Step 10: Connect Battery
Connect battery to battery clipper of the circuit.
Step 11: Give 220V AC Main Power Supply
Now when we will give main power supply to the motor then motor will be start and water will be filling.
Step 12: Automatic Turn Off Motor
As water will fill upto wires then the Motor will be turn off automatically.
As picture shows light/Motor gone turn off automatically when water filled upto the wires.