Sound Trigered Camera flash

Posted on May 24, 2012

If you wish to take a picture of a fleeting event which generates a sound, you can do it with this sound activated trigger. It does not require any power supply: it feeds on the high voltage available on the flash trigger terminal. Any economic ceramic microphone is suitable for the purpose. The 68nF capacitor introduces a small delay in the operation of the flash and may help in getting the picture in exactly the right moment although you should expect to take several shots for best results.

Sound Trigered Camera flash
Click here to download the full size of the above Circuit.

With this circuit you will be able to catch a cork leaving the champagne bottle or the moment a balloon is punctured. The whole circuit could be assembled in the mike housing making a very compact device.

Leave Comment

characters left:

New Circuits



Popular Circuits

Ballast Control IC Design
TDA1524 Stereo Tone Control
Bass-treble, Volume, balance and Loudness control
Digital Clock
Shaft type part temperature measurement system become by 51 one piece organizations
Invert a 555 Astable Output Signal
Doppler Rdf
Suunto PC Interface
Wide band high frequency amplifier circuit
4 channel dimmer
PWM Generator
Multipurpose tape recorders TV signal generator circuit