Read Time:39 Second
This circuit is implemented using ULN2003 IC. IC ULN2003 made up of an array of seven Darlington transistor pairs.
- R1-R3-1k ohm
- M1-M7-Metal Contacts
- ULN2003 IC
- This circuit can be used to indicate three levels of water in tanks.
- When metal contact is reached ,each Led starts glowing .When the tank is full buzzer starts ringing along with this all LEDs are ON.
- Water Level Indicator Is Very Useful In Houses.
- This Projects is also implement at large scale like ,school ,collages , Universities, Malls, Multinational ,International Companies as well.
- It Helps Us To Save Our Electricity And Also Help To Prevent Of Water Wastage.