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Water Level Indicator Using ULN2003

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Introduction:

This circuit is implemented using ULN2003 IC. IC ULN2003 made up of an array of seven Darlington transistor pairs.

Components Required:

  • L1-L3-LEDs
  • R1-R3-1k ohm
  • M1-M7-Metal Contacts
  • ULN2003 IC

Circuit Diagram:

 

Fig: Water Level indicator Circuit Diagram

Working:

  • 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.

Uses:

  • 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.

Complete Project Video:

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