Collect all required hardware including the ESP32 development board, RC522 RFID reader, RFID cards, LEDs, buzzer, and connecting wires.

Wire the RC522 module to the ESP32 using the SPI interface.

Typical connections include:

• SDA
• SCK
• MOSI
• MISO
• RST
• 3.3V
• GND

Double-check all wiring before powering the board.

Connect LEDs to indicate:

• Power ON
• Successful Scan
• Invalid Card

Optionally connect a buzzer for audible confirmation.

Install the required Arduino libraries and configure:

• Wi-Fi credentials
• RFID initialization
• GPIO pins
• Web server
• Inventory database

Upload the firmware to the ESP32.

Scan each RFID card once and assign it to an inventory item such as:

• Component Box
• Laptop
• Tool Kit
• Spare Parts
• Office Equipment

Each RFID UID becomes the unique identifier for that item.

Create a lightweight dashboard that displays:

• Item Name
• RFID UID
• Entry Time
• Exit Time
• Current Status
• Total Inventory Count

The dashboard refreshes automatically whenever a new tag is scanned.

Present RFID tags near the reader.

Verify that:

• Tag is detected instantly
• Inventory updates correctly
• LEDs respond
• Buzzer activates
• Dashboard reflects changes in real time

Once the prototype works reliably, design a custom PCB integrating:

• ESP32
• RC522 connector
• Power supply
• Status LEDs
• Buzzer
• Programming header

This creates a compact and professional hardware solution.