Attached is a drawing, but I am only looking for the electronics and battery pack (must be rechargeable)
I need to have 3 working samples once the entire job is done
Here is what it must do.
Have a programmable timer ( our games typically last 60-90 minutes )
Be able to set a deactivation the timer with a 4-6 digit code (changes often)
Have wire that when cut will shut off the timer and display/say system deactivated.
if a wrong wire is cut then it will go into a fast count down and the only way to stop it would be to enter the correct 4-6 digit code.
if a wrong code is entered then the clock will go into a very fast countdown mode
once the timer is done an explosion sound would happen
I am hoping that there will be a usb port and all I would do is plug it in and enter the info needed, once set it would stay in memory until I decided to change the game.
something similar is here : The Betty V4.0 talking paintball bomb prop with FAST countdown timer & TONS MORE on ebay
I am currently using this design but have had issues and cannot be programed and saved