It makes use of an Arduino, a Parallax RFID Reader, a micro servo, a button, an RGB LED, and a cleverly designed latch made of a metal eye hook and small copper rod. Since the box is battery ...

It makes use of an Arduino, a Parallax RFID Reader, a micro servo, a button, an RGB LED, and a cleverly designed latch made of a metal eye hook and small copper rod. Since the box is battery ...

Also called an "RFID interrogator." The maximum distance between the reader's antenna and the tag vary, depending on application. Credit cards and ID badges have to be brought fairly close to the ...