water level indicator
over flowing of water from the overhead tank
can be prevented by the implementation of this circuit.
This circuit indicates the amount of water in
the overhead tank during the water filling operation of the motor.when the
water is 25% filled a red led glows,50% filled a blue led glows,75% filled a
green led glows and when it is 99% filled the buzzer beeps up.
The position of the leds and buzzer can be
adjusted accordingly by the circuit implementer by fixing the wires at the
desired place.
This circuit is made and tested by me and it
works,i have established it in my home and it is working fine.
Here i have used a 555 timer for beeping the
buzzer and 6v adapter supply for power and a k buzzer.
specifications:
1 NE555 timer
3 BC548 transistor
3 leds(red,blue,green)
1 K buzzer
resistors- 1pc 100k
1pc 1k
3 pc 220k
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| modern-engineering.blogspot.com |
the circuit was made by me for college
project in 2nd yr of my B.tech
it was very nice to play with leds and
buzzer,
the sound of the buzzer can be increased by
increasing the resistor 100k to more higher value.
for any further information on this project
or any problem please comment below or email me to ratan.singh@ieee.org
saw a lot of circuits on level indicator but this one really worked perfectly...thanks..
ReplyDeletehoping to see more innovative circuits
thanks once again!
hey will this not get short ciruit in water.
ReplyDeletecan you tell me how to make a windmill i want to make it for my school science project
ReplyDeletewell welcome abhishek let me know when you complete your innovation.
ReplyDeleteno suresh it will never get short circuit because here water is helping in conduction of current to closed the circuit,,,,,so whenever water will be in contact or any current conducting material then there will be closed path and the circuit will get on.
ReplyDeletehmmm.......ksmsl why not...i have'nt made any as such but i will provide you with complete details shortly.....
ReplyDeletewhat is the component between pin 1 and 2 (22.2uf)
ReplyDeleteits a ceramic capacitor with 22.2uf, you can use different depending on your configurations of resistors, further you can also use electrolytic capacitor with 12v or 16v rating if you don't get ceramic, all works fine. this capacitor is used to generate pulse to drive the buzzer.for more information about this refer any analog electronics books, 555 timer astable mode configuration and its duty cycle calculation procedure.....incase of further queries comment..
ReplyDeletethanks ratan,its very helpful for me.....
ReplyDeleteyou are most welcome, in case you need any help further, contact me
Delete