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.

Far from it, in fact — the smoothly animated bar graph displays alphanumerics look fantastic. What’s cool about this is that he accomplished all this without resorting to custom characters.

The maximum stock level is the largest amount of stock a business can store on site. In the bar graph example, it is 500 items of stock. The minimum stock level is also known as buffer stock.