MySentinel — NFC movement tracking for schools

The problem

Schools track learner movement — gate arrivals, sickroom visits, early departures, aftercare — on paper registers. Parents find out about an early sign-out hours later, and a paper trail is exactly as reliable as the person holding the pen.

The approach

Each learner carries an NFC badge; tap points at the gate and key rooms record movement in real time. Around ten Cloudflare Workers handle badge events, the staff dashboard, and outbound notifications, with WhatsApp messages to parents on the events that matter. Built for a real school first, then productised.

The outcome

Live at app.mysentinelza.com and in daily use. A learner leaving early triggers a parent's phone before the car leaves the parking lot.