Coke Machine Can Level Detector

I'm fortunate enough to have an old Coke machine that I use for, er, "refreshments". It holds about 30ish cans when full. The trouble is, how many cans are in it at any given time? When do I need to make a run to replenish the machine?A solution (apart from opening the machine all the time) is to...
By: ChrisN219

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[original story: Instructables]

Instructables 13 Mar 14:40