The task is to click on a few gopro cameras simultaneously.
It is possible for the timer-based take charge frm01 02 03 which would give a signal to all of the mechanisms which, in turn, pressed the camera record button.
How is naimatullah mechanism? Little is? The Chinese? We?
If it is necessary to click mechanically, then fit a solenoid or a servo.
If it is necessary to electrically close the switch, optorele/optocoupler.
If you have a GoPro they can be controlled remotely, there is a ready module for arduino esp8266 on the basis of