The Design of Key Finder Using Bluetooth Low Energy Technology
Ma, Yu (2016)
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I can not always find my keys or my wallet, but in fact I did not loose them, I merely put them randomly somewhere I can not remember. However, this randomly loosing things behavior bothers me quit much, I suppose many people are annoyed by not finding their keys. In this thesis, a small PCB was designed that can be hung on key and when the keys are lost, the owner can trigger a buzz on a mobile app and the key finder will start to buzz.