The Concentration Box
- Hack Details: I want to build a locked box that can only be opened by solving molarity and concentration calculations. There’ll probably be a treat inside for the capable student who solves the basic arithmetic.
- What you need to make it happen?: A suitable box (could prep something in advance?), a solid way to lock it (maybe a solenoid?), microcontroller, screen and keyboard (I have a wee usb numberpad if that’s useful).
- Name: Tríona
- Twitter/website: @triploidtree / scienceisdelicious.com
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I have something like this https://www.sparkfun.com/products/256
Can be used with a arduino or the like, do you have a keypad