Arduino – Most “Effective” Morning Alarm – Gesture Unlock

This is a project built by my girlfriend. She bought most of the staff from Sparkfun, where I think the gesture sensor is really cool. However, that picky sensor only works at 3.3V level which forces her to wipe the dust off my ancient level converter.
Congratulations and good job baby!

sparkfun_level_converter

Curious how this transistor can do this magic?

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