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Water-Tank Overflow Indicator

Water-Tank Overflow Indicator

3

2

7

4

6

-

+

IC1

LM741

COM

IC1

UM66

2

1

IN

3

OUT

+B

R1

10K

R2

10K

R3

10K

-B

D5

1N4007

R5

680Ω

ZD1

3.1V

R6

1.5K

T1

BC547

LS1

0.5W

LED1

R4

100Ω

OVERFLOW

GND

METAL PLATES

WATER TANK

Water-Tank Overflow Indicator

3
0
0
publish time: 2020-09-29
Circuit Everyday

Water is an important but scarce natural resource. In order to prevent wasting water, this water tank overflow indicator will sound and visual alarm whenever the water tank overflows.

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