For starters, you need a pre-wired NFC RFID module as the key hardware. NFC and RFID projects have become a huge trend, but many modules are pricey for electronics hobbyists and need a complex setup.

As far as wireless technologies go, radio-frequency identification (RFID) is one of the oldest. Patented in 1983 by the late British inventor Charles Walton, RFID made it possible for new, ...

Despite the current locavore trend, many of the perishable foods we consume are not produced locally. For freshness and safety, dairy, meat, poultry, seafood, and fruits and vegetables shipped ...

In the previous article, “The principles of RFID: Active Tags,” we discussed a classification of RFID tag called the active tag. Even though the active tag has many applications, it does not get as ...