|RC522 MODULE|     MEGA|
|------------|---------|
|SDA|              D9|
|SCK|              D52|
|MOSI|             D51
|MISO|             D50
|IRQ|              N/A
|GND|              GND
|RST|               D8
|3.3V|            3.3V

|Fingerprint|Mega|
|---|---
|Finger_RST_Pin|     24
|Finger_WAKE_Pin|    23
|Serial2|

Bluetooth
Serial3

Keypad
A0-A7
One-to-one

WiFi
Serial1
