I need to build a pressure plate to go on the front of a prop to be used in Airsoft.
The idea is this plate is both an target to be shot at and a visual representation of "health".
My initial thinking is along the lines of a translucent perspex circle mounted on springs in front of micro switches. It could have RGB LEDs behind it that can be changed from Green to Red. The electronics behind all of this are already handled as part of a larger project by an Arduino.
The problem for me lies in the physical design of this plate. Specifically, how to mount the plate in such a way that the pressure will reliably be detected and the plate will return to "off" position. Also, which types of switches to use. I was thinking maybe micro switches with long arms for leverage?
Maybe rather than micro switches some kind of membrane would be better? But would that be able to withstand getting shot at by airsoft weapons? Impact force on the plate will be <= 1 Joule from a 6mm plastic BB.
Any help gladly appreciated!