RFID-Reader Using an RFID-RC522 sensor with an Arduino Uno to read different RFID chips. Depending on the UID read, I change the color of a Neo Pixel ring. YouTube YouTube: https://www.youtube.com/watch?v=0s8la5rcTP0&list=PLgAD2y-6wgwqGkJA6LGxVd1h0B_EZtzo5 Diagram