🎓 Pinnacle - Smart Classroom Platform
Enable live question handling, WebSocket streams, and instant QR scan connections.
Client
Pinnacle Education Group
Focus Area
Real-Time Education Platform
Links
Services
Engineering & Architecture
The Challenge
Educational classrooms struggle with active student engagement, instant quiz collection, and real-time announcement schedules. Legacy systems suffer from database costs, server connectivity delays, and complex student authentication barriers.
The Solution
Pinnacle solves this by implementing a comprehensive smart classroom system. Teachers display dynamic QR code gates that students scan to connect immediately without usernames. A high-performance WebSocket pub/sub channel keeps live voting tallies, countdown timers, hand-raising, and anonymous chits fully synced in real-time.
Key Features
- Admin portal scheduling slots and allocating unique 6-digit session passcodes
- Teacher console generating quiz countdowns, anonymous chits logs, and voting grids
- Student console with simple QR scan gates, virtual hand-raising, and live answers submissions
- Dynamic session validation redirecting unauthorized access to course archives
The Stack
Frontend
Flutter Web & Mobile (SDK 3.4+), StreamControllers, qr_flutter
Backend & Server
Node.js, Express, ws (WebSockets)
Database
PostgreSQL (Supabase via Drizzle ORM)
Measurable Impact
- Multi-platform accessibility across Web, Android, iOS, macOS, Windows, and Linux
- Unified authentication using bcryptjs password hashing and HMAC-SHA256 JWT tokens
- Real-time parameterized WebSocket streams (activeSlot:teacherId) replacing database polling
- Instant auto-connection scan gates bypassing passcode inputs completely
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