MartynCurrey_WaterDrops

The dropController is a DIY Arduino based solenoid valve controller used in water drop photography. It can create or control up to 9 drops from 1 to 6 valves.

 
The dropController features:
– Connection for camera focus and shutter trigger
– Connection for flash trigger
– Connections for 6 solenoid valves (image still show the 3 valve version)
– Optional LEDs to show when camera, flash and valve triggers are active
– Optional switches for draining the valves

– Up to 9 drops. Each drop separately controlled
– Mirror lock up option
– Bulb mode or shutter trigger only
– Camera shutter and focus control (auto focus only)
– Flash trigger control
– Loop mode (Keep looping until you stop it)
– Increase or decrease times while looping
– Auto save drop data
– Auto save main settings

 
The below video shows the breadboard version of dropController controlled from the Android app. This is a very simple, dining room table using a retort stand, a single valve and milk as the liquid. Here I am creating 2 drops every 4 seconds using the automatic loop function. Using a lab/retort stand is an easy and fairly cheap way to get started with drop photography.

 
Since the project is DIY, you can build it how you like; on a bread board or put it inside a project box.
dropControllerBT Bread BoarddropControllerPC_finalBox_01_800

 
The dropController is controlled over Bluetooth from an Android app or a Windows program, or by USB from the Windows program. Sorry no IOS versions.
dropController_App_1-38_ScreendropController_WinApp_1-2-02_Screen

All files and diagrams can be downloaded and just about anybody should be able to build their own dropController.

 
 

Copyright

While I wish to retain all rights I also feel it is important to make this information available so all information in this website is free for non-commercial use and you are free to:
– Share, copy and redistribute the material in any medium or format.
– Adapt, change, or add to the material.
I would appreciate if you give appropriate credit, ideally provide a link back to this website.

If you do change or add features to the dropController please let me know so I can include on the website (with credit).

 
 
Note:
As off March 2017 there is only one version of the dropController. I have merged the dropControllerBT and dropControllerPC devices (they were basically the same) and removed the original dropController.

Until I manage to rewrite the website there will still be references to dropControllerBT and dropControllerPC. Please treat these as the same thing.