Circuit Documentation
Summary
This document provides a detailed overview of a circuit that integrates an ESP8266 NodeMCU microcontroller with an RFID-RC522 module. The ESP8266 NodeMCU is used to control the RFID-RC522, which is a popular RFID reader module. The document includes a list of components, wiring details, and any associated code.
Component List
ESP8266 NodeMCU
- Description: A low-cost Wi-Fi microcontroller with GPIO, PWM, ADC, I2C, and SPI interfaces.
- Pins: D0, D1, D2, D3, D4, 3V3, GND, D5, D6, D7, D8, RX, TX, A0, RSV, SD3, SD2, SD1, CMD, SD0, CLK, EN, RST, VIN
RFID-RC522
- Description: A 13.56 MHz RFID module used for reading and writing RFID tags.
- Pins: VCC (3.3V), RST, GND, IRQ, MISO, MOSI, SCK, SDA
Wiring Details
ESP8266 NodeMCU
- D0: Connected to RST pin of RFID-RC522
- D2: Connected to SDA pin of RFID-RC522
- D5: Connected to SCK pin of RFID-RC522
- D6: Connected to MISO pin of RFID-RC522
- D7: Connected to MOSI pin of RFID-RC522
- GND: Connected to GND pin of RFID-RC522
- 3V3: Connected to VCC (3.3V) pin of RFID-RC522
RFID-RC522
- RST: Connected to D0 pin of ESP8266 NodeMCU
- SDA: Connected to D2 pin of ESP8266 NodeMCU
- SCK: Connected to D5 pin of ESP8266 NodeMCU
- MISO: Connected to D6 pin of ESP8266 NodeMCU
- MOSI: Connected to D7 pin of ESP8266 NodeMCU
- GND: Connected to GND pin of ESP8266 NodeMCU
- VCC (3.3V): Connected to 3V3 pin of ESP8266 NodeMCU
Code
No code is provided for this circuit.
This document provides a comprehensive overview of the components and wiring details for the ESP8266 NodeMCU and RFID-RC522 circuit. The wiring details ensure proper connections between the microcontroller and the RFID module, facilitating seamless communication and operation.