Photographing water drops in various liquids is a fun and creative thing to do, however getting the exposure at just the right time can often be a challenge. Enthusiast Justin Barkby considered this an opportunity to solve the problem using an Arduino, and has published a neat guide on doing it yourself.
With an Arduino controlling the size of a water drop via a water solenoid, the amount of time between drops and the camera shutter - it doesn't take long to get the desired image, such as the example shown below:
Reproducing this yoruself is easy, and Justin has provided the schematic and Arduino sketch to make it possible - so log in to the Arduino forum for more discussion and to download his guide.
If you need to add external hardware or devices to your next Arduino project, you'll need a protoshield to mount the external circuitry. In doing so, consider our range of ProtoShields. From the tiny LeoStick to the Mega range, we offer a complete range for you to work with.