Attendance & QR Scanner Module
Sub-second QR door check-in with instant guardian SMS
Eliminate entrance queues when hundreds of students arrive for class. Works on any smartphone or tablet without expensive POS hardware.
Live Scanner Simulator
Test sub-second entrance processing live
Edge Active
Student Digital Badge
Kasun Perera (ADM-042)
Grade 11 Combined Maths
System Edge Output
Latency:Waiting scan...
Status:Ready
Guardian Phone (077 •••• 123)SMS Ready
Waiting for student scan to dispatch automated SMS...
Engineered for massive rush-hour scale
Redis Edge Caching
Student QR credentials pre-warmed in Redis memory. Scans evaluate in <15ms with zero synchronous database queries.
Live SSE Dashboard Feed
Server-Sent Events (SSE) stream real-time scan events directly to institute administrators without page refreshes.
Anti-Forgery Tokenization
QR codes use opaque random cryptographic tokens rather than sequential student IDs to prevent tampering and duplication.