Rain Alarm


Posted on Feb 5, 2014

Rain Alarm. This circuit gives out an alarm when its sensor is wetted by water. A 555 astable multivibrator is used.


Rain Alarm
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Logarithmic amplifier
    3-30V-universal-power-supply-module
    CONDENSER MIC SCHEMATIC
    Interfacing PC keyboard to AVR microcontroller
    Digital voltmeter using ICL7107
    tuned sine wave oscillator circuit
    building rf remote control
    Electromagnetic Field Probe with Meter Outputs
    Wide-Range Doppler Antenna
    CMOS Integrated Switched-Mode Transmitters for Wireless Communication
    PS/2 Keyboard IR Receiver
    Circuit of RIIA phono pre-amplifier op-27
    Bidirectional thyristor AC contactor interface circuit



    Top