NodeMCU-RFID-Door-Lock

RFID Door lock using esp8266 with solenoid lock and relay module.

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Parts Used:

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• NodeMCU v3 Lolin ESP8266 IoT • NodeMcu ESP8266 Base Plate • MFRC-522 • 1 Channel Relay 5V Isolated Module • Solenoid Door Lock DC 12v • Power Supply 12v • RGB LED 5MM • x2 Resistor 1K Ohm • Buzzer 5v • Broadboard • Jumper Cables

Schematic:

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Connections:

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RFID (MFRC-522)

• 3.3v = 3.3v • RST = D3 / PIN20 • GND = GND • IRQ = Not Used • MISO = D6 / PIN40 • MOSI = D7 / PIN44 • SCK = D5 / PIN36 • SDA = D4 / PIN24

BUZZER 5V:

• SIGNAL = D0 PIN8 • GND = GND

RGB LED:

• RED = D2 / PIN16 • GREEN = D1 / PIN12 • GND = GND

RELAY:

• GND = GND • VCC = 3.3V / PIN46 • IN1 = D8 / PIN50

Solenoid Lock:

• Solenoid Lock GND = GND +12v Power Supply • Relay (NO) pin = +12V Power Supply • Relay (COM) pin = +12v Solenoid Lock

Demonstration: