Component List
ESP32 (30 pin)
- Description: A 30-pin microcontroller with Wi-Fi and Bluetooth capabilities, suitable for a wide range of IoT applications.
https://s.click.aliexpress.com/e/_onmXCw0
RFID-RC522
- Description: An RFID reader/writer module for interfacing with RFID tags operating at 13.56 MHz.
https://s.click.aliexpress.com/e/_oDqXQIC
WS2812B White LED
- Description: An individually addressable LED with integrated control circuitry.
https://s.click.aliexpress.com/e/_ooOaxY0
- Description: A cable with an alligator clip for making temporary electrical connections.
Wiring Details
ESP32 (30 pin) Connections
| ESP32 Pin | Connected To |
|---|
| D23 | RFID-RC522 MOSI |
| D19 | RFID-RC522 MISO |
| D18 | RFID-RC522 SCK |
| D5 | RFID-RC522 SDA |
| D15 | RFID-RC522 RST |
| 3V3 | RFID-RC522 VCC (3.3V), WS2812B White LED 5V |
| GND | RFID-RC522 GND, WS2812B White LED GND |
| D26 | WS2812B White LED DIn |
| D27 | Alligator Clip Cable Pin |
RFID-RC522 Connections
| RFID-RC522 Pin | Connected To |
|---|
| MOSI | ESP32 D23 |
| MISO | ESP32 D19 |
| SCK | ESP32 D18 |
| SDA | ESP32 D5 |
| RST | ESP32 D15 |
| VCC (3.3V) | ESP32 3V3 |
| GND | ESP32 GND |
WS2812B White LED Connections
| WS2812B Pin | Connected To |
|---|
| 5V | ESP32 3V3 |
| GND | ESP32 GND |
| DIn | ESP32 D26 |
Alligator Clip Cable (Blue) Connection
| Alligator Clip Cable Pin | Connected To |
|---|
| Pin | ESP32 D27 |