mawarirefinesse-bit/smartdoorlocksystem

A low-cost adaptive multi-factor lock for healthcare housing in Zimbabwe, combining RFID, fingerprint, PIN, and facial recognition on ESP32. It operates offline, stores data encrypted locally, and includes a live web dashboard offering secure, hardware-affordable access control without stable internet. # adaptive multi-factor lock A low-cost adaptive multi-factor lock for healthcare housing in Zimbabwe, combining RFID, fingerprint, PIN, and facial recognition on ESP32. It operates offline, stores data encrypted locally, and includes a live web dashboard offering secure, hardware-affordable access control without stable internet. ## Features - Four independent authentication factors: RFID, fingerprint, PIN, and facial recognition (ESP32-CAM) - Two-of-four authentication policy (minimum two distinct factors) - Offline-first operation – no cloud dependency - AES-256-GCM encrypted local storage (LittleFS) - Real-time web dashboard served directly from ESP32 (WebSocket updates) ## Hardware Requirements | Component | Model | Purpose | |-----------|-------|---------| | Microcontroller | ESP32 DEVKIT-1 | Main processor | | Camera module | ESP32-CAM (OV2640) | Facial recognition | | RFID reader | RC522 (13.56 MHz) | Contactless tag reading | | Fingerprint sensor | R307 (optical) | Biometric verification | | Keypad | 4×4 matrix membrane | PIN entry | | Servo motor | MG90 (metal gear) | Physical lock actuator | | Power supply | 5V DC with battery backup | System power | ## Pin Connections | Component | ESP32 Pins | |-----------|-------------| | RC522 RFID | MOSI(23), MISO(19), SCK(18), SS(5) | | R307 Fingerprint | TX(17), RX(16) | | 4×4 Keypad | Rows(32,33,25,26), Cols(27,14,12,13) | | Servo motor | PWM pin 15 | | ESP32-CAM | Connected via UART (TX/RX) or as standalone | ## Software Dependencies - Arduino IDE (with ESP32 board support) - Libraries: MFRC522, Adafruit_Fingerprint, Eloquent Face Recognition, ESPAsyncWebServer, LittleFS, ArduinoJSON, WebSockets - ## wifi conectivity - uses wifimanager libriries - make sure that when accessing the website the accessing device and the esp32 are connected to the same network. - ## how to run the code - all the files must be added in a single folder and open the lock.ino file -