Almost everyone has the experience of finding forgotten food in the refrigerator that spoils before any food is eaten. The Nudge Tag system is designed to prevent this from happening through the color-changing dongle.

The Nudge Tag system was developed by Tugiba, a start-up company in Virginia, and consists of two main parts: a cloud-connected Puck device that is magnetically installed on the front of the refrigerator door, and multiple tags hanging or clipped to food.

When the user puts food in the refrigerator for the first time, they first rotate the dial on the Puck-doing so will advance a digital display, which indicates how many days the item is due (based on its usage-expiration date, etc.) . Then they press the Bluetooth pairing button on a tag, which is close to Puck. This will transfer the dial-in data to the tag.

Finally, the label is affixed to the food placed in the refrigerator. Each subsequent time the refrigerator door is opened, Puck will detect the movement and wirelessly trigger all currently active tags to light up in one of three colors to respond-green means there is enough time to eat the food, yellow means it should be It will be used soon, red means it has expired.

In addition, Puck's LCD touch screen and accompanying application will display the number of labels currently assigned to the food, as well as the color status of each label. According to reports, Puck’s lithium polymer battery should last about 15 days per charge, and each Tag’s replaceable button battery should last up to one year.

If you are interested, the Nudge Tag system is currently the subject of Kickstarter activities. Assuming it reaches the production stage, a commitment of $109 will provide you with a package containing a Puck and six tags, of which a Puck/12-Tag kit will cost $148. Voice-activated tags may be provided as an extension target later.

You can see the system in use in the video below.