Ideas for building Haptic Interface

A drawing of how our haptic interface could work:

- Build something that spins a number of times to set off an alarm
- LED's that change as you use more water
- Arduino to count up up how long it's going for
- Coil, magnet, moving magnet past coil to introduce a current, hook up to LED
- Code it to make it trigger something physical.
- Reed Switch
- DIY revolution counter