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Oliver Holroyd, 29, from Halifax, was enjoying a night out at the Funky Flamingo bar on March 22 when he suddenly became unwell, reports the Mirror. The father-of-one reportedly fell backwards ...

and a Nano in a nifty 3D printed box up top to do some math and display the number of cans remaining as a simple bar graph. The sensor reads one bay, and the code multiplies by two to get the total.