P15006: Catch a water drop with a DSLR - the simple way.
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README.md Updated readme Jan 27, 2018


Water Drop (Simple)

This is the very basic code to catch a water drop on camera. Why is it called basic? Because you have to set your parameters in the code, there is no menu or PC application, that allows you to change the parameters mid-run. You have to change the parameters, so they match to those of your mechanical construction. Remember, that all paramters are in millimeters or milliseconds. You can also determine, if the mirror-lockup is enabled.

1 How it works

After you changed all parameters depending on your physical construction, you can upload the script to your Arduino. Note, that you can change the adjust time afterwards, by sending the Arduino the time in milliseconds via the serial monitor. If you hit the start button, the Arduino will get the sensor signal and uses it as trigger-reference. If the mirror lockup is enabled, the camera will be triggered once, to pull the mirror up. After this the LED on the Arduino will go high, which is the signal for you to let the water drop fall.

That's all, just a very simple sketch to chatch a water drop.

For more details, visit my website:

2 License

This project is licensed under the GNU GPLv3 open source license. Thus anybody is allowed to copy and modify the source code, provided all changes are open source too and the author is in knowledge of all done changes. This can happen either via eMail or directly on GitHub, in other words at this repository.

3 Disclaimer

I am not responsible for anything in conjunction with this project, including bugs, failure, fire, harm of equipment and harm of persons. Reasonably foreseeable misapplication:

  • Bug in the code
  • Failure of used parts due to a bug in the code or a wrong wiring diagram, including a wrong design.
  • Fire due to a wrong wiring diagram, including a wrong design.
  • Harm of equipment, meaning third party parts (cameras, flashes, etc.) due to a bug in the code or a wrong wiring diagram, including a wrong design.
  • Harm of persons due to any failure of the system, a wrong wiring diagram or a wrong behaviour.

It is your own responsibility to use these contents. Be careful, this project includes lethal electrical voltage. Put yourself in knowledge about the risks before you start with this project.