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“Learn how to build a NFC tag activated lockbox for a beer crate! You open the latch, place the beer crate inside, close the ledge and scan the NFC card on the NFC reader. This activates the servo motor inside …
“Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags contain electronically stored information. Passive tags collect energy from a nearby RFID reader’s interrogating radio waves. Active tags have a local power …
“PROBLEM: We moved into a new house a couple of years ago, and it already had a security system installed. Problem was that nobody knew the password! The previous owners never used it, and the manufacturer had gone out of …
“Do you ever leave your key under doormat or other hidden place so another family member can open the door? or when you arrive at your office and realize your door hasn’t been locked. what if another person open …
“When we see sophisticated door management system(s), the price tag struck immediately along with the utility off-course. In countries like India, such automatic systems are not cheap by any yardstick. So, we decided to test a simple and cheap …