This project uses a microphone and a raspberrypi running a python script to record sound samples fft them and compare the fft with a previously recorded sonic screwdriver. When the program finds a match it locks/unlocks the door using a transistor connected to a electronic door strike. Started this project about a year ago and never got around to finishing it. The sci-fi contest seems like a perfect excuse to finish the project.
The code collects sound samples FFTs the results and then compares them to recorded validated FFTs. If they successfully match the validated samples then the door lock is triggered unlocking the door.
The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It is a capable little computer which can be used in electronics projects, and for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. We want to see it being used by kids all over the world to learn programming.
NPN Darlington pair
transitor to switch the electronic door strike
Electronic Door Strike
This is an NC or locked without power door strike similar to the door locks on apartment buildings
mic to work w/ raspberrypi
It is a multifunctional tool used by The Doctor. Its most common function is that of a lockpick, but can be used to perform other operations such as performing medical scans, remotely controlling other devices, tracking alien life and, using red setting or dampers, it can control the properties of atoms and molecules on a small scale. It can, with the exception of a deadlock seal or wooden lock, open any type of lock and operate many computers, whether their origin is alien or human.