Control Arduino from remote ethernet trigger switch through computer

Using Arduino Project Guidance
1

Hi everyone

I have a experimental setup which involve 3 cameras which is already sync with regards to each other. I am using a remote trigger switch (external button) to send them a signal when they need to start capturing images (these cameras are high speed cameras which can capture numerous images over a short period of time). The cameras are connected to a Ethernet hub which in turn is connected to my computer through an Ethernet cable. In this way I can download the images to my computer. What I want to do is to use this external trigger button to execute a command on a arduino (I am using the ESP32 Dev Module). This command needs to tell the arduino to start logging certain data at the instance when I push the external trigger. As a note I just want to say that the button I use is literally an external button and NOT a button on my computer. Can anyone please provide me with a simple solution or idea and refer me to a similar project. I am struggling to find a similar project, but I might have been looking in the wrong places.

Please help!!!

2

The easiest way would be to tap into the button and wire it up to your arduino. Then your arduino can monitor the button just like your cameras do and start recording when it sees it change state.

You will have to figure out how that button is wired to the cameras and which side if the button is high/low before the button push and which sided changes so make sure you wire it correctly.