I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

Makers, developers and hobbyists looking for a quick way to program RFID cards might be interested in a new Arduino compatible RFID reader development board called the RFID123 which has been created ...

Electronics developer and Kickstarter serial entrepreneur Patrick Thomas Mitchell who we have featured numerous times here on Geeky Gadgets has once again taken to the crowdfunding website with the ...

If you’re the kind of person who has friends, and/or leaves the confines of the basement from time to time, we hear that these “Escape Rooms” are all the rage. Basically you get locked into a room ...

After acquiring Philadelphia-based Neiman Group, Boston ad agency Allen & Gerritsen found itself with two teams of employees separated by 300 miles. It presented an increasingly common problem: When ...

This article introduces the CMOS integrated transceiver circuit EM4095 for RFID applications working with transponders at a frequency of typically 125 kHz. The EM4095 is a single-chip RFID reader IC ...