“Here’s how the Milkmaid works. The milk goes into the vessel (in its current form, it can hold up to a quart of milk), and as it begins to turn sour in the fridge, a set of pH and temperature sensors located in the vessel’s metal base will periodically take readings and relay that information to the pedestal that the vessel sits in. That white pedestal — they call it the SmartBase — is where most of the magic happens. When a microcontroller in the base receives the information from those pH sensors, it slowly changes an LED mounted on its front from green to orange to signify how nasty the milk is getting. Also nestled inside the SmartBase is a weight sensor meant to detect how much milk is left in the vessel, along with a GSM radio module, an antenna, a SIM card, and a hefty rechargeable battery to keep the whole thing humming along.” w/ photos
