Water Pump

Water- Pump Control Project Objectives: This project is aimed to design an automatic on-off controller for a water pump corresponding to the water level in a tank which water is pumped to. Description: There are two water levels considered; the high level and the low level. Let’s denote the levels H level and L level. When the water is lower than the level, the state of the level is said to be 0; and when the water is higher than the level, it is said to be 1. The power to the pump is denoted 1 for on, and 0 for off. Then we have the relation between the water level and the pump. H level 0 0 1

L level 0 1 1

Pump Power 1 No change 0

In the heart of the circuit for performing this operation, I used a 4027 Dual JK flipflop . The truth table for the 4027 IC is given below:

Then the circuit: RL1 TEXTELL-KBH-5V

R4

Q1

SW1

C828

LEVEL B

mA

+88.8

5V

R5

R3 100

U1:A

7 5

J

1

Q

K

R1 2.2k

CLK

4

B1

3

S

330k

6

R

R2

2

Q

4027

SW2 LEVEL A

Q2 C828

Automatic Water Pump control

Q3 H1061

RL1 TEXTELL-KBH-5V

R4

Q1

SW1

C828

LEVEL B

mA

+88.8

R5

R3 100

U1:A

6

R

4 3

K

Q

J

Q

Q3

2

H1061

CLK

7

ON

330k

5

S

R2

OFF

1

R1 2.2k

4027

B1 5V

SW2 LEVEL A

Q2 C828

Automatic Water-Pump control with manual ON-OFF I tested these circuits on my kit, and it worked well. That pretty good.