Quantity   Component name
1 × Arduino Nano R3
1 × MFRC522 RFID Module
1 × 2-Way Relay
1 × RFID Key or Card
3 × Rotary potentiometer
3 × Potentiometer Knob
1 × RGB Diffused Common Anode
1 × 5 mm LED: Green
4 × Resistor 220 ohm
1 × JLCPCB Customized PCB