Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, an RFID-RC522 module, and a buzzer. The ESP32 serves as the central controller, interfacing with the RFID module to read RFID tags and controlling the buzzer for audio feedback.

Component List

ESP32

• Description: A powerful microcontroller with built-in Wi-Fi and Bluetooth capabilities.
• Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT

RFID-RC522

• Description: A low-cost RFID reader module that operates at 13.56 MHz.
• Pins: VCC (3.3V), RST, GND, IRQ, MISO, MOSI, SCK, SDA

Buzzer

• Description: A simple piezoelectric buzzer for audio output.
• Pins: PIN, GND

Wiring Details

ESP32

• GND: Connected to GND of the buzzer and GND of the RFID-RC522.
• 3V3: Connected to VCC (3.3V) of the RFID-RC522.
• D2: Connected to PIN of the buzzer.
• D5: Connected to RST of the RFID-RC522.
• D18: Connected to SCK of the RFID-RC522.
• D19: Connected to MISO of the RFID-RC522.
• D21: Connected to SDA of the RFID-RC522.
• D23: Connected to MOSI of the RFID-RC522.

RFID-RC522

• VCC (3.3V): Connected to 3V3 of the ESP32.
• RST: Connected to D5 of the ESP32.
• GND: Connected to GND of the ESP32.
• SCK: Connected to D18 of the ESP32.
• MISO: Connected to D19 of the ESP32.
• SDA: Connected to D21 of the ESP32.
• MOSI: Connected to D23 of the ESP32.

Buzzer

• PIN: Connected to D2 of the ESP32.
• GND: Connected to GND of the ESP32.

Code

No code is provided for this circuit.

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This documentation provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code section. The ESP32 microcontroller interfaces with the RFID-RC522 module and controls the buzzer, making it a versatile and functional circuit.