An IoT-based fingerprint metro payment system enabling secure biometric fare transactions using Arduino Nano and ESP8266. Integrates PHP REST APIs, PostgreSQL database, and a real-time admin dashboard for user registration, balance recharge, and live transaction monitoring.
iot arduino esp8266 postgresql php-rest-api admin-dashboard fingerprint-authentication embedded-systems iot-security biometric-verification smart-transport contactless-payment biometric-payment smart-payment-system metro-payment
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Updated
Feb 25, 2026 - C++