Secure Biometric and Smart-Card Access System
Optical fingerprint sensor (R307) and MIFARE RFID 13.56MHz dual-factor door access latch with audit log.

Project Overview
Hardware door security system storing encrypted fingerprint minutiae templates locally in EEPROM. Logs entry timestamps to an SD card and sends instant alert emails upon repeated unauthorized intrusion attempts. ### Practical Student Engineering Solution Fully functional hardware demonstration prototype equipped with dedicated microcontrollers, precision sensors, actuators, and an interactive cloud/mobile telemetry dashboard. ### Key Learning Outcomes - Embedded C / MicroPython firmware architecture and sensor interfacing - IoT telemetry protocols (MQTT / HTTP / BLE / LoRaWAN) - Power regulation, hardware debugging, and PCB design principles - Comprehensive technical documentation aligned with IEEE academic standards
Modern commercial and industrial infrastructure requires automated, real-time sensing and telemetry. Conventional manual monitoring suffers from high latency, human error, and lack of predictive fault visibility for Secure Biometric and Smart-Card Access System.
A turnkey engineering prototype integrating high-precision sensor modules, dedicated microcontroller unit, and cloud telemetry protocols to automate measurement, trigger alert thresholds, and provide remote dashboard control.