Hi guys, I would like to create a wi-fi enabled coffee jar that alerts me when the coffee level in the jar is low so that I can pick up more coffee beans. For this, I believe I need the ability for the coffee jar to recognize when the coffee levels are low (how would I do this!) and then alert a we…

Wi-fi linked coffee jar

backbone March 12, 2012, 12:59pm 3

Optical sensor (beam) to see through the jar.

Paco