Unconventional Switch - Charging Cable

 One of the largest first-world problems that plagues our nation is unreliable chargers. We’ve all had it happen: you place your phone to charge after a long day of work, fall asleep with it at 16%, then wake up to find out it failed to charge in the slightest. But argh! There’s way too many variables to find out why this happened! It could’ve been the charging block, the charging cable, or the phone itself. This device aims to fix that, and to test those pesky charging devices in the process.

This unconventional switch requires a 9V battery, several alligator clips, a breadboard, one 100 ohm resistor, a charging cable, a charging block, and an LED light. We connected the 100 ohm resistor and the charging cable to the positive side, and the charging block with the LED to the ground. If both pieces are functional and the opposite end of the charging cable is placed on the connected plug’s prong, the LED lights up.