Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

[Jason] really wanted to build an RFID ... system. Whenever a valid key is swiped, the Arduino triggers a relay which can then be used to control just about anything. In this case, [Jason] plans ...

Nair explained that many schools use an RFID-based attendance system known as an iClicker to track whether ... Nair said that a clone device could be built using a low-cost Arduino electronics ...