My main passion is photographing and this has led me into the world of electronics and microcontrollers.The object of this device is to vibrate a membrane using a speaker, making small droplets of paint bounce up of it and trigger camera and flash in the correct moment.The device has 3 knobs for setting;- Camera delay (from the tone start)- Flash delay (from the camera)- Tone of sound (and a switch for white noise)There are two PICAXE microcontrollers in use.The small PICAXE-08M is used for the tone generator and the PICAXE-28x1 is used for controlling the sequence of camera / flash / LCD. Actually you don’t need an LCD but it looks way cooler and helps you dial the correct delay more easily. The ‘membrane unit’ is made of an old PC speaker (with amplifier)A fun little project if you’re in to photography.
Pictures taken with this system
The system in use
The old speaker with a plexiglass insert
Putting it all together
inside the box