By reading different values from the sensor, we can detect if is it light , dark or a value between them. Another element that we are going to use on this experiment is Piezo Buzzer.

Once you have all your components, you can start assembling your high-speed camera trigger. Connect the piezoelectric sensor to the Arduino, and then connect the Arduino to the camera and flash.

In the proof of concept, power for the initial setting was derived from the piezo sensor. The theoretical operating energy budget is less than 10aJ, according to ‘ A self-powered analog ...