rain sensor alarm circuit


Posted on Feb 6, 2014

A rain sensor alarm circuit can be a very beneficial device for alerting when rainfall happens. The rain detector circuit shown here is very simple using only three components but is very sensitive to detect rain or moisture. The sensor part of the circuit can be easily made with verobaord or you can also make it in home by attaching thin metal st


rain sensor alarm circuit
Click here to download the full size of the above Circuit.

rips on plastic or wood etc. The sensor can be made by several techniques, and performance of the circuit is also depends on the sensor. For better performance make sure to give no more than 1minimeter gap between the sensor strips. Working of the circuit is simple the transistor BC547B is working as a switch in this circuit when the water droplets fall on the sensor the transistor will become switched on and the 9V will start passing through the transistor which will activate the Buzzer.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Electronic dice with 7 LED
    Audio Gambar Skema Condenser Microphone Amplifier
    hit the number
    RIAA Phono Preamplifier
    2004 F250 Truck Cap Rear Wiper
    I2C PIC Interfacing Tutorial Circuit
    Improving the MICOR Receiver for 435-450 MHz
    AC motor integrated Hall element off the circuit diagram
    One of debug circuitry DC motor armature resistance in series starting



    Top