You want to look sharp these days and wear the low riding jeans like all the cool kids wear but is there anything more embarrassing than having your “coin slot” aka “carpenter crack” aka butt crack exposed for the world to see? Designed by Amy Khoshbin on Instructables, the Coin Slot Detector will save you from public shame. The CSD uses a photoresistor to measure light coming into the slot. When it detects light, a vibrating hip pack alerts the wearer and appropriate cover up measures can then be taken.
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