This is my first Arduino project. I am building a bomb in a suitcase for an outdoor escape room type event. I have sketched up the finished case and used the Arduino app to generate the schematics.
The process is: The case would have a combination padlock on it. When open, the team inserts a key and turns it. This starts the 2 minute countdown and turns the three indicator lights to red. Team toggles the switches to the correct position which turns one of the red lights to green. Team cuts two of the wires, which if correct turns the next red light to green.
Team inputs the correct combination which turns the last light to green and stops the countdown.
I can look at the coding afterwards but am confused about the hardware needed to make this happen. The two parts of this I am missing from the schematics is the key to activate the countdown and the cutting the wires puzzle. Can someone advise me so I can finish the schematics?
For the cut wires, put one end of the wire to ground and the other to an input set to INPUT_PULLUP. Then just tread each wire as a switch. As long as the wire is intact the input will be pulled and read LOW. Cut or disconnect the wire and the input will go HIGH.
I am having a hard time following the diagram (it is NOT a schematic). It would simplify the wiring if the switches were wired to ground and the switch inputs set to INPUT_PULLUP. You would not need external pull down resistors. And you could run only 1 ground wire to connect them all. The switches will read LOW when on and HIGH when off.
Thank you - I am finding out that the tool in here is a bit of a waste but to be honest, I am very much in the learning stages of Arduino and I used the system more to list the components I need to buy than anything else!
