In this 555 timer project, I have shown how to make automatic water pump controller circuit using 555 timer IC for submersible pump and overhead tank. This automatic water pump controller also checks the water level of the underground tank, then starts the pump. And it has both Auto and Manual mode to control the pump.

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Here, I have used a 30A relay, so you can easily control up to 2 HP pump with this simple automatic pump controller.

I have covered the following topics in this DIY water level controller project.
00:32 Quick Demo on Automatic Pump Controller circuit.
03:43 How to make DIY PCB for automatic pump control.
04:06 Required components for this 555 timer projects
04:12 Circuit of the 555 timer ic pump controller project.
05:47 Connect diagram for water level sensing wires and pump.
06:21 Testing the automatic water tank filling system.

Download the PCB Layout for the Automatic pump controller project.
[ Ссылка ]

With this simple 555 timer circuit, we can stop the water overflow from the water tank. The pump will automatically start if the water level becomes low. If we want we can also start and stop the pump manually.

Required components for the water pump automatic control circuit with Amazon Affiliate link:
555 Timer IC (1no) [ Ссылка ]
BC547 NPN Transistor (2no) (Q1, Q2)
1k 0.25-watt Resistors (2no) (R5, R6)
22k 0.25-watt Resistors (3no) (R1, R2, R8)
180k 0.25-watt Resistor (1no) (R7)
1M 0.25-watt Resistors (2no) (R3, R4)
LED 1.5V 5-mm (1no)
1N4007 Diode (D1) (1no)
100nF (104) Capacitor (C1) (1no)
12V SPDT Relay (Contact Rating 30A) (1no) [ Ссылка ]
Connectors & IC base (4 pin)
Switch (1no)
Zero PCB [ Ссылка ]

Please note down the following point before making the circuit.
1. Here, I have used 30A Relay, so you can easily control most of the 1-ph pump.
2. For the 3ph pump, you can control the starter coil with this circuit.
3. Do not coil the water level sensing wires together, keep them separate.
4. The pump will automatically start for the following conditions
- Overhead tank water level comes below the "ON" level.
- Underground water level above UL1 level.
- Circuit in Auto Mode (Auto Switch is ON).
5. The pump will automatically stop for the following conditions
- Overhead tank water level touches the "OFF" level.
- Underground water level comes below UL1 level.
- Circuit in Auto Mode (Auto Switch is ON).
6. NO and COM terminal of the relay are connected across the existing manual switch of the pump.
7. If you don't have underground tank connect the UL1 and COM terminals (as shown).

Please take proper safety precautions while working with the high voltage.

After watching the video, you can easily design this automatic water tank level controller motor driver circuit for your home.

If you face any issues please let me know in the comment section.

#waterpumpautocutswitch #555projects

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WARNING:
This video is for demonstration and educational purposes only.
Each demonstration presents risks and hazards that must be fully understood before attempting.
And should be performed only by professionals

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