Review on 🔑 Qunqi RC522 RFID RF IC Card Inductive Module: S50 White Card + Key Ring for Arduino - Explore Advanced Contactless Authentication System! by Gavin Dunne

UPDATE: This was actually my Arduino. The product itself is SUPER! I have another Arduino and it works fine. 5 Stars! I also added a servo to the keg lock (using a paperclip) and now I can put this device on anything and unlock it from the OUTSIDE with an RFID card! It didn't work on my first Arduino, but luckily it did on another one (was a fake called "Funduino")! Basically it would just alert me that it wasn't connected to my first Arduino. It worked on my second Arduino but didn't scan RFID cards. This is because no power was connected; The power pins of the 2nd Arduino are defective. But I powered my first Arduino and then it worked and scanned every RFID card! I'll be getting a new Arduino soon so I'll see if it works with it and update this review.