Arduino flood alarm – Simple Water Level Sensor

Hello world! Today i made a simple arduino flood alarm with a water level sensor. I do not sell these sensors on my website because they don’t last very long when measuring water i will order gold coated ones and test them for a few weeks, but its very simple to build and useful for a flood alarm, beside that the sensor is very cheap. I’m sure this is useful for some.

Schematic:
arduino flood alarm

Parts list:
Arduino uno, I used the RobotDyn uno.
Water level sensor.
Buzzer.
Led ( i used white)
Jumper wire set MM/FF/FM

Code:

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Danny van den Brande

http://www.arduinosensors.nl

I like to code electronics, do 3D Design, Webdesign and Graphic Design.

6 thoughts on “Arduino flood alarm – Simple Water Level Sensor”

  1. Hello there!
    I would say that this idea is extravagant,good and quite relevant to certain countries that used to face floods every year.
    Let say I would love to use this invention and do some good innovations on it and develop it as a Flood Sensor Alarm, do you think it can achieve my target or whole other more advance system need to be used?

    1. Hi, This is actually just a simple example on what you could do with this sensor, but i would use it for like flood alarms in the bathroom etc. Or places where automatic watering systems are in use for example plants, but of course you could also use this simple code and cheap sensor for a natural disasters flood alarm. Its effective enough.

      Reply

      1. Hi Danny
        You have the water level sensor plugged into the tx serial pin on your schematic but in your code you are referencing digital pin 2. Can I just plug the water sensor into digital pin 2 rather than the tx serial pin?

  2. Hi, This is actually just a simple example on what you could do with this sensor, but i would use it for like flood alarms in the bathroom etc. Or places where automatic watering systems are in use for example plants, but of course you could also use this simple code and cheap sensor for a natural disasters flood alarm. Its effective enough.

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