Hi Folks,
As an Arduino newbie I'm struggling a bit with the business end of my current project.
With the use of a sketch from Instructables I've built a working laser trigger for high speed flash photography.
The laser i'm using is from an Elegoo sensor kit and is a 650nm unit.
As a receiver i'm using a MagiDeal Digital Light Intensity Sensor Photodiode Module Photo Resistor for Arduino (from amazon).
The whole unit works as a mock up but I'm unsure whether the classic "water drop shot" will happen too fast for my rig to detect it.
I've included a potentiometer to control/adjust the delay from the laser beam being broken and the flash firing. There is also another pot' to adjust the power of the laser.
As I'm not the first to build one of these things I was wondering if there is a recommended pairing of laser & diode to use that will trigger the flash (via an optocoupler) from very short beam interruptions, such as an air gun pellet or a falling drop of liquid. Hoping this isn't too vague,
Cheers, Eugene.
A look into the sensor data sheet can answer many questions.