6: Arduino Projects: Fingerprint Lock
Once you have all this electronic stuff around, you can’t let just about anybody into your workshop. This Fingerprint door lock helps you in keeping unwanted people away from your workshop. You want some engineer to access the workshop, you can add his credentials to the database and he would have access as well.
If updating the fingerprint sensor becomes tiring for you, there is always another system of a secret door knock. However, things are not like the secret seven now. Using the arduino project, you can turn your regular door lock into a smart door lock. A good opportunity to work with morse code to come up with knocks. Or you could just “say friend and enter” (Ref. Lord of the rings). You could create multiple arduino projects with similar rigs.
A variant of the secret knock detector could be a gumball machine that dispenses only to limited people. You could have a machine setup in your home and have fun with your family. You could also punish others by changing the knock (just an idea).
Some reports stated Bengaluru to be unlivable in the next 5 years. Top reason listed in the report was high air pollution. How about you build something for yourself that helps you in keeping the air clean at least in your home. The outside can be taken care by planting more trees, which is a longer process. You go ahead with building a air quality control system for yourself.
Taking your zeal to make the air clean inside your apartment, we would also suggest you build this next jacket which signals left or right turning for two wheelers. Left or right turning indicators are often missing in bicycles, and most of the other people don’t use them. This jacket could come in handy for such people. The blinking LED’s indicate left or right turning movements.
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