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