Circuit Documentation

Summary

This circuit involves an Arduino Mega 2560, an Arduino Nano, and an RFID-RC522 module. The Arduino Mega 2560 and Arduino Nano are interconnected through their analog pins, while the RFID-RC522 module is interfaced with the Arduino Nano. The circuit is designed to read RFID tags using the RFID-RC522 module and process the data using the Arduino microcontrollers.

Component List

Arduino Mega 2560

• Description: A microcontroller board based on the ATmega2560.
• Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, D21/SCL, D20/SDA, D19/RX1, D18/TX1, D17 PWM/RX2, D16 PWM/TX2, D15/RX3, D14/TX3, D0 RX0, D1 TX0, D2 PWM, D3 PWM, D4 PWM, D5 PWM, D6 PWM, D7 PWM, D8 PWM, D9 PWM, D10 PWM, D11 PWM, D12 PWM, D13 PWM, AREF, SDA, SCL, D52, D50, D48, D46, D44, D42, D40, D38, D36, D34, D32, D30, D28, D26, D24, D22, D53, D51, D49, D47, D45, D43, D41, D39, D37, D35, D33, D31, D29, D27, D25, D23, 6swdw

Arduino Nano

• Description: A small, complete, and breadboard-friendly board based on the ATmega328.
• Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

RFID-RC522

• Description: A low-cost RFID module that uses the MFRC522 IC.
• Pins: VCC (3.3V), RST, GND, IRQ, MISO, MOSI, SCK, SDA

Wiring Details

Arduino Mega 2560

• A0: Connected to Arduino Nano A0
• A1: Connected to Arduino Nano A1
• A2: Connected to Arduino Nano A2
• A3: Connected to Arduino Nano A3

Arduino Nano

• A0: Connected to Arduino Mega 2560 A0
• A1: Connected to Arduino Mega 2560 A1
• A2: Connected to Arduino Mega 2560 A2
• A3: Connected to Arduino Mega 2560 A3
• 3V3: Connected to RFID-RC522 VCC (3.3V)
• D9: Connected to RFID-RC522 RST
• GND: Connected to RFID-RC522 GND
• D12/MISO: Connected to RFID-RC522 MISO
• D11/MOSI: Connected to RFID-RC522 MOSI
• D13/SCK: Connected to RFID-RC522 SCK
• D10: Connected to RFID-RC522 SDA

RFID-RC522

• VCC (3.3V): Connected to Arduino Nano 3V3
• RST: Connected to Arduino Nano D9
• GND: Connected to Arduino Nano GND
• MISO: Connected to Arduino Nano D12/MISO
• MOSI: Connected to Arduino Nano D11/MOSI
• SCK: Connected to Arduino Nano D13/SCK
• SDA: Connected to Arduino Nano D10

Code Documentation

Arduino Mega 2560 Code

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Arduino Nano Code

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

This documentation provides a comprehensive overview of the circuit, including the components used, their connections, and the code running on the microcontrollers.