KitchenSync tracks items like Rice, Milk, Sugar, Salt in your pantry using Force Sense Resistor, Electric Imp and Web Front End.
My Wife and I work full time and have a 2 year old daughter. Since InstaCart started, we have been using it exclusively for rice, sugar, milk but even then there are times when we ran out of frequently used products like rice, milk etc. So, I decided to further automate this product where in I can track items on the shelf in my pantry using sense resistors and order items directly from InstaCart when they fall below a threshold.
This demo is tracking Milk. If Milk falls below 1/4, in future, it could call InstaCart API that would deliver Milk.