WHAT IS IT?
Needing a major prop for Scouty wide games, I decided to kill two birds with one stone. I’m reluctant to use the word ‘bomb’, but that’s pretty much what this is meant to resemble, with the classic countdown clock, keypad, LEDs etc.
WHAT DOES IT DO?
There’s a keyswitch on the side to turn it on and off, a micro switch guarding the lid, and on the back is a 3.5mm stereo jack. This is used for tethering the device to a tree, radiator or other immovable object, and if disconnected will set off the alarm. There is also an output line to set off a louder alarm if desired.
I didn’t get obsessive about tidiness as I wanted an intentionally haphazard look visible through the acrylic case.
Visually, I used some scrap tubing and caps to simulate explosive material.
HOW DO YOU PLAY THE GAME?
The idea of the game is that the timer will be set for a fixed period, and will begin counting down. If the box is interfered with, the alarm will go off. It the timer runs down to zero, the alarm will go off. If the box is moved, the alarm will go off. Depending on the age of the players, a number of different clues will have to be located, building up to a complete disable code. Once the code is obtained and entered, the clock will stop and the game is over.
The device includes a number of programming opportunities:
- HD44780 16x2 display to process (4-bit data)
- Matrix keypad to process
- Discrete LEDs (2off)
- Anti-tamper circuit
- Sound processing
Hopefully my Year 13s will get into this now they are back from study leave.