Security that reacts before you do.
Event-driven defense with real-time cloud intelligence and sub-300ms latency.
Achieved via WebSocket optimization, down from 2s standard HTTP polling. Feels instantaneous.
Conventional smart locks rely on slow polling loops, single-point authentication, and delayed cloud updates. This makes them vulnerable to brute-force attempts and delays critical alerts.
This system secures entry points with 3 independent layers (Biometric, PIN, App) and uses an event-driven architecture to react to threats instantly, not periodically.
Start with Biometric verification, fallback to encrypted PIN, or use Mobile App override.
WebSocket-based communication eliminates HTTP polling lag for real-time control.
3-strike intrusion detection instantly disables access and alerts the owner.
Interrupt-driven wake-up allows the system to sleep deeply until a physical event occurs.
Watchdog timers and automatic recovery routines prevent system hangs or crashes.
Full system state sync with the Blynk IoT app for remote monitoring and unlock.
Standard polling loops waste power and are too slow for security. We built a fully **Interrupt-Driven Architecture**.
Physical tampering or fingerprint detection triggers a hardware interrupt within microseconds. The ESP8266 wakes from deep sleep, transitions to an authentication state, and pushes a WebSocket alert immediately.
ESP8266 + Biometric/Motion Sensors.
C++ State Machine + Watchdog Timers.
Blynk IoT Platform + WebSocket Real-time Sync.
// Interrupt Service Routine
void IRAM_ATTR detectFinger() {
if (systemState == IDLE) {
// Immediate State Transition
systemState = AUTH_WAIT;
wakeUpTime = millis();
// Wake ESP8266 from Light Sleep
wifi_fpm_do_wakeup();
// Push Websocket Alert
Blynk.virtualWrite(V1, "Motion Detected");
}
}
// Hardware Attach
attachInterrupt(digitalPinToInterrupt(D2), detectFinger, RISING);